{"segment":[{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/2.jpg' \/><\/center>Cho hai n\u1eeda m\u1eb7t ph\u1eb3ng c\u00f3 chung b\u1edd a. H\u00e3y ch\u1ecdn c\u00e2u \u0111\u00fang:","select":["A. Kh\u00f4ng c\u00f3 \u0111i\u1ec3m n\u00e0o \u0111\u1ed3ng th\u1eddi thu\u1ed9c hai n\u1eeda m\u1eb7t ph\u1eb3ng","B. C\u00f3 v\u00f4 s\u1ed1 \u0111i\u1ec3m \u0111\u1ed3ng th\u1eddi thu\u1ed9c hai n\u1eeda m\u1eb7t ph\u1eb3ng","C. C\u00f3 hai \u0111i\u1ec3m \u0111\u1ed3ng th\u1eddi thu\u1ed9c hai n\u1eeda m\u1eb7t ph\u1eb3ng","D. C\u00f3 m\u1ed9t \u0111i\u1ec3m \u0111\u1ed3ng th\u1eddi thu\u1ed9c hai n\u1eeda m\u1eb7t ph\u1eb3ng"],"hint":"","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3:<br\/>Hai n\u1eeda m\u1eb7t ph\u1eb3ng c\u00f3 chung b\u1edd a, c\u00f3 v\u00f4 s\u1ed1 \u0111i\u1ec3m \u0111\u1ed3ng th\u1eddi thu\u1ed9c hai n\u1eeda m\u1eb7t ph\u1eb3ng<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'>B. C\u00f3 v\u00f4 s\u1ed1 \u0111i\u1ec3m \u0111\u1ed3ng th\u1eddi thu\u1ed9c hai n\u1eeda m\u1eb7t ph\u1eb3ng<\/span><\/span> <br\/>","column":1}]}],"id_ques":2231},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/H626_D101.png' \/><\/center>Cho h\u00ecnh v\u1ebd c\u00f3 s\u1ed1 \u0111o nh\u01b0 tr\u00ean. T\u00ednh $\\widehat{yOz}$ . ","select":["A. $\\widehat{yOz}$ = $50^o$","B. $\\widehat{yOz}$ = $60^o$","C. $\\widehat{yOz}$ = $70^o$","D. $\\widehat{yOz}$ = $80^o$"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> + So s\u00e1nh $\\widehat{xOy}$ v\u00e0 $\\widehat{xOz}$ \u0111\u1ec3 t\u00ecm ra tia n\u1eb1m gi\u1eefa<br\/>+ D\u1ef1a v\u00e0o \u0111\u1eb3ng th\u1ee9c c\u1ed9ng g\u00f3c \u0111\u1ec3 t\u00ednh $\\widehat{yOz}$<\/span> <br\/><span class='basic_left'><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/H626_D101.png' \/><\/center>Ta c\u00f3: $\\widehat{xOy}$ < $\\widehat{xOz}$ (v\u00ec $30^o$ < $100^o$)<br\/>N\u00ean tia Oy n\u1eb1m gi\u1eefa hai tia Ox v\u00e0 Oz<br\/>Suy ra $\\widehat{xOy}$ + $\\widehat{yOz}$ = $\\widehat{xOz}$<br\/>Thay $\\widehat{xOz}$ = $100^o$, $\\widehat{xOy}$ = $30^o$, ta \u0111\u01b0\u1ee3c:<br\/> $30^o$ + $\\widehat{yOz}$ = $100^o$<br\/>Suy ra $\\widehat{yOz}$ = $100^o$ - $30^o$ = $70^o$ <br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'>C. $\\widehat{yOz}$ = $70^o$<\/span><\/span> <br\/><\/span>","column":2}]}],"id_ques":2232},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":" Bi\u1ebft $\\widehat{xOy}$ , $\\widehat{yOz}$ l\u00e0 hai g\u00f3c b\u00f9 nhau v\u00e0 $\\widehat{yOz}$ = $20^o$. T\u00ednh $\\widehat{xOy}$ ","select":["A. $\\widehat{xOy}$ = $70^o$","B. $\\widehat{xOy}$ = $20^o$","C. $\\widehat{xOy}$ = $150^o$","D. $\\widehat{xOy}$ = $160^o$"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3: $\\widehat{xOy}$ , $\\widehat{yOz}$ l\u00e0 hai g\u00f3c b\u00f9 nhau<br\/>N\u00ean $\\widehat{xOy}$ + $\\widehat{yOz}$ = $180^o$<br\/>Thay $\\widehat{yOz}$ = $20^o$, ta \u0111\u01b0\u1ee3c:<br\/>$\\widehat{xOy}$ + $20^o$ = $180^o$<br\/>Suy ra $\\widehat{xOy}$ = $180^o$ - $20^o$ = $160^o$<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: D. $\\widehat{xOy}$ = $160^o$<\/span> <br\/><\/span><span class='basic_left'><span class='basic_green'>Nh\u1eadn x\u00e9t:<\/span> Hai g\u00f3c b\u00f9 nhau l\u00e0 hai g\u00f3c c\u00f3 t\u1ed5ng s\u1ed1 \u0111o b\u1eb1ng $180^o$<\/span>","column":2}]}],"id_ques":2233},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" Bi\u1ebft $\\widehat{xOy}$ , $\\widehat{yOz}$ l\u00e0 hai g\u00f3c ph\u1ee5 nhau v\u00e0 $\\widehat{yOz}$ = $10^o$. T\u00ednh $\\widehat{xOy}$ ","select":["A. $\\widehat{xOy}$ = $90^o$","B. $\\widehat{xOy}$ = $80^o$","C. $\\widehat{xOy}$ = $170^o$","D. $\\widehat{xOy}$ = $180^o$"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3: $\\widehat{xOy}$ , $\\widehat{yOz}$ l\u00e0 hai g\u00f3c ph\u1ee5 nhau<br\/>N\u00ean $\\widehat{xOy}$ + $\\widehat{yOz}$ = $90^o$<br\/>Thay $\\widehat{yOz}$ = $10^o$, ta \u0111\u01b0\u1ee3c:<br\/>$\\widehat{xOy}$ + $10^o$ = $90^o$<br\/>Suy ra $\\widehat{xOy}$ = $90^o$ - $10^o$ = $80^o$<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B. $\\widehat{xOy}$ = $80^o$<\/span> <br\/><\/span><span class='basic_left'><span class='basic_green'>Nh\u1eadn x\u00e9t:<\/span> Hai g\u00f3c ph\u1ee5 nhau l\u00e0 hai g\u00f3c c\u00f3 t\u1ed5ng s\u1ed1 \u0111o b\u1eb1ng $90^o$<\/span>","column":2}]}],"id_ques":2234},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" Cho $\\widehat{xOz}$ = $150^o$, $\\widehat{xOy}$ = $40^o$. Bi\u1ebft tia Oy n\u1eb1m gi\u1eefa hai tia Ox v\u00e0 Oz. T\u00ednh $\\widehat{yOz}$. ","select":["A. $\\widehat{yOz}$ = $100^o$","B. $\\widehat{yOz}$ = $110^o$","C. $\\widehat{yOz}$ = $120^o$","D. $\\widehat{yOz}$ = $130^o$"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> N\u1ebfu tia Oy n\u1eb1m gi\u1eefa hai tia Ox v\u00e0 Oz th\u00ec $\\widehat{xOy}$ + $\\widehat{yOz}$ = $\\widehat{xOz}$<\/span> <br\/><span class='basic_left'><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/H626_D103.png' \/><\/center>Tia Oy n\u1eb1m gi\u1eefa hai tia Ox v\u00e0 Oz<br\/>N\u00ean $\\widehat{xOy}$ + $\\widehat{yOz}$ = $\\widehat{xOz}$<br\/>Thay $\\widehat{xOz}$ = $150^o$, $\\widehat{xOy}$ = $40^o$, ta \u0111\u01b0\u1ee3c:<br\/> $40^o$ + $\\widehat{yOz}$ = $150^o$<br\/>Suy ra $\\widehat{yOz}$ = $150^o$ - $40^o$ = $110^o$ <br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'>B. $\\widehat{yOz}$ = $110^o$<\/span><\/span> <br\/><\/span>","column":2}]}],"id_ques":2235},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/H626_D105.png' \/><\/center> Cho h\u00ecnh v\u1ebd nh\u01b0 tr\u00ean. G\u00f3c xOy c\u00f3 s\u1ed1 \u0111o l\u00e0:","select":["A. $130^o$","B. $135^o$","C. $120^o$","D. $125^o$"],"hint":"","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Quan s\u00e1t h\u00ecnh v\u1ebd ta th\u1ea5y:<br\/>+ Tia Ox \u0111i qua v\u1ea1ch 0<br\/>+ Tia Oy \u0111i qua v\u1ea1ch 135<br\/>V\u1eady g\u00f3c xOy c\u00f3 s\u1ed1 \u0111o l\u00e0: $135^o$<br\/>Ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'>B. $135^o$<\/span><\/span> <br\/>","column":2}]}],"id_ques":2236},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n sai","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/H626_D107.png' \/><\/center> Cho h\u00ecnh v\u1ebd nh\u01b0 tr\u00ean. H\u00e3y ch\u1ecdn c\u00e2u sai:","select":["A. Hai \u0111i\u1ec3m A v\u00e0 B thu\u1ed9c hai n\u1eeda m\u1eb7t ph\u1eb3ng ","B. Hai \u0111i\u1ec3m B v\u00e0 C c\u00f9ng thu\u1ed9c n\u1eeda m\u1eb7t ph\u1eb3ng b\u1edd a","C. Hai \u0111i\u1ec3m A v\u00e0 B c\u00f9ng thu\u1ed9c n\u1eeda m\u1eb7t ph\u1eb3ng b\u1edd a","D. Hai \u0111i\u1ec3m A v\u00e0 C thu\u1ed9c hai n\u1eeda m\u1eb7t ph\u1eb3ng b\u1edd a"],"hint":"","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> H\u00ecnh v\u1ebd tr\u00ean c\u00f3: <br\/>+ \u0110i\u1ec3m B n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng th\u1eb3ng A<br\/>+ Hai \u0111i\u1ec3m A v\u00e0 C thu\u1ed9c hai n\u1eeda m\u1eb7t ph\u1eb3ng b\u1edd a<br\/>+ Hai \u0111i\u1ec3m B v\u00e0 C c\u00f9ng thu\u1ed9c n\u1eeda m\u1eb7t ph\u1eb3ng b\u1edd a<br\/>+ C. Hai \u0111i\u1ec3m A v\u00e0 B c\u00f9ng thu\u1ed9c n\u1eeda m\u1eb7t ph\u1eb3ng b\u1edd a<br\/>V\u1eady \u0111\u00e1p \u00e1n sai l\u00e0: <span class='basic_pink'>A. Hai \u0111i\u1ec3m A v\u00e0 B thu\u1ed9c hai n\u1eeda m\u1eb7t ph\u1eb3ng<\/span><\/span> <br\/>","column":1}]}],"id_ques":2237},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t \u0111i\u1ec1n v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/2.jpg' \/><\/center> Hai tia Ox v\u00e0 Oy \u0111\u1ed1i nhau th\u00ec c\u00f3 ............ n\u1eb1m gi\u1eefa hai tia Ox v\u00e0 Oy","select":["A. duy nh\u1ea5t m\u1ed9t tia","B. hai tia","C. ba tia","D. v\u00f4 s\u1ed1 tia"],"hint":"","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3:<br\/>N\u1ebfu hai tia Ox v\u00e0 Oy l\u00e0 hai tia \u0111\u1ed1i nhau th\u00ec <b>m\u1ecdi tia g\u1ed1c O kh\u00e1c Ox v\u00e0 Oy \u0111\u1ec1u n\u1eb1m gi\u1eefa hai tia Ox v\u00e0 Oy<br\/>N\u00ean c\u00f3 v\u00f4 s\u1ed1 tia n\u1eb1m gi\u1eefa hai tia Ox v\u00e0 Oy<\/b><br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'>D. v\u00f4 s\u1ed1 tia<\/span><\/span> <br\/>","column":2}]}],"id_ques":2238},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/H626_D110.png' \/><\/center>Cho h\u00ecnh v\u1ebd c\u00f3 s\u1ed1 \u0111o nh\u01b0 tr\u00ean. T\u00ednh $\\widehat{tOy}$ . ","select":["A. $\\widehat{tOy}$ = $55^o$","B. $\\widehat{tOy}$ = $65^o$","C. $\\widehat{tOy}$ = $75^o$","D. $\\widehat{tOy}$ = $85^o$"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> + So s\u00e1nh $\\widehat{xOt}$ v\u00e0 $\\widehat{xOy}$ \u0111\u1ec3 t\u00ecm ra tia n\u1eb1m gi\u1eefa<br\/>+ D\u1ef1a v\u00e0o \u0111\u1eb3ng th\u1ee9c c\u1ed9ng g\u00f3c \u0111\u1ec3 t\u00ednh $\\widehat{tOy}$<\/span> <br\/><span class='basic_left'><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/H626_D110.png' \/><\/center>Ta c\u00f3: $\\widehat{xOt}$ < $\\widehat{xOy}$ (v\u00ec $50^o$ < $125^o$)<br\/>N\u00ean tia Ot n\u1eb1m gi\u1eefa hai tia Ox v\u00e0 Oy<br\/>Suy ra $\\widehat{xOt}$ + $\\widehat{tOy}$ = $\\widehat{xOy}$<br\/>Thay $\\widehat{xOt}$ = $50^o$, $\\widehat{xOy}$ = $125^o$, ta \u0111\u01b0\u1ee3c:<br\/> $50^o$ + $\\widehat{tOy}$ = $125^o$<br\/>Suy ra $\\widehat{tOy}$ = $125^o$ - $50^o$ = $75^o$ <br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'>C. $\\widehat{tOy}$ = $75^o$<\/span><\/span> <br\/><\/span>","column":2}]}],"id_ques":2239},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/H626_D113.png' \/><\/center>Cho h\u00ecnh v\u1ebd c\u00f3 s\u1ed1 \u0111o nh\u01b0 tr\u00ean. Bi\u1ebft tia Ot n\u1eb1m gi\u1eefa hai tia Ox v\u00e0 Oy. T\u00ednh $\\widehat{xOy}$ . ","select":["A. $\\widehat{xOy}$ = $40^o$","B. $\\widehat{xOy}$ = $50^o$","C. $\\widehat{xOy}$ = $90^o$","D. $\\widehat{xOy}$ = $100^o$"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> D\u1ef1a v\u00e0o \u0111\u1eb3ng th\u1ee9c c\u1ed9ng g\u00f3c \u0111\u1ec3 t\u00ednh $\\widehat{xOy}$<\/span> <br\/><span class='basic_left'><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/H626_D113.png' \/><\/center>Ta c\u00f3: Tia Ot n\u1eb1m gi\u1eefa hai tia Ox v\u00e0 Oy<br\/>Suy ra $\\widehat{xOt}$ + $\\widehat{tOy}$ = $\\widehat{xOy}$<br\/>Thay $\\widehat{xOt}$ = $25^o$, $\\widehat{tOy}$ = $75^o$, ta \u0111\u01b0\u1ee3c:<br\/> $\\widehat{xOy}$ = $25^o$ + $75^o$ = $100^o$<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'>D. $\\widehat{xOy}$ = $100^o$<\/span><\/span> <br\/><\/span>","column":2}]}],"id_ques":2240},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["48"],["96"]]],"list":[{"point":5,"width":60,"type_input":"","ques":"Cho tia Oy l\u00e0 tia ph\u00e2n gi\u00e1c c\u1ee7a g\u00f3c xOz. Bi\u1ebft $\\widehat{xOy}$ = $48^o$. V\u1eady $\\widehat{yOz}$ = _input_$^o$, $\\widehat{xOz}$ = _input_$^o$","hint":"","explain":"<span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/H626_D114.png' \/><\/center>Ta c\u00f3: Tia Oy l\u00e0 tia ph\u00e2n gi\u00e1c c\u1ee7a $\\widehat{xOz}$ <br\/>Suy ra $\\widehat{xOy}$ = $\\widehat{yOz}$ = $\\dfrac{1}{2}$ $\\widehat{xOz}$ = $48^o$<br\/>L\u1ea1i c\u00f3: $\\widehat{xOy}$ = $\\dfrac{1}{2}$ $\\widehat{xOz}$<br\/>Do \u0111\u00f3: $\\widehat{xOz}$ = 2. $\\widehat{xOy}$ = 2. $48^o$ = $96^o$<br\/>V\u1eady c\u00e1c s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u1ea7n l\u01b0\u1ee3t t\u1eeb tr\u00e1i qua ph\u1ea3i l\u00e0: <span class='basic_pink'> 48, 96<\/span><\/span> <br\/> "}]}],"id_ques":2241},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["60"],["60"]]],"list":[{"point":5,"width":60,"type_input":"","ques":"Cho tia Oy l\u00e0 tia ph\u00e2n gi\u00e1c c\u1ee7a g\u00f3c xOz. Bi\u1ebft $\\widehat{xOz}$ = $120^o$. V\u1eady $\\widehat{xOy}$ = _input_$^o$, $\\widehat{yOz}$ = _input_$^o$","hint":"","explain":"<span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/H626_D117.png' \/><\/center>Ta c\u00f3: Tia Oy l\u00e0 tia ph\u00e2n gi\u00e1c c\u1ee7a $\\widehat{xOz}$ <br\/>Suy ra $\\widehat{xOy}$ = $\\widehat{yOz}$ = $\\dfrac{1}{2}$ $\\widehat{xOz}$ = $\\dfrac{1}{2}$ $120^o$ = $60^o$<br\/>V\u1eady c\u00e1c s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u1ea7n l\u01b0\u1ee3t t\u1eeb tr\u00e1i qua ph\u1ea3i l\u00e0: <span class='basic_pink'> 60, 60<\/span><\/span> <br\/> "}]}],"id_ques":2242},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t \u0111\u1ec3 \u0111i\u1ec1n v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/4.jpg' \/><\/center> G\u00f3c c\u00f3 s\u1ed1 \u0111o b\u1eb1ng $90^o$ l\u00e0 ................","select":["A. g\u00f3c b\u1eb9t","B. g\u00f3c vu\u00f4ng","C. G\u00f3c nh\u1ecdn","D. g\u00f3c t\u00f9"],"hint":"","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3: <br\/>G\u00f3c c\u00f3 s\u1ed1 \u0111o b\u1eb1ng $90^o$ l\u00e0 <b>g\u00f3c vu\u00f4ng<\/b><br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n : <span class='basic_pink'>B. g\u00f3c vu\u00f4ng<\/span><\/span> <br\/>","column":2}]}],"id_ques":2243},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":" Bi\u1ebft $\\widehat{xOy}$ = $50^o$, $\\widehat{aOb}$ = $40^o$. V\u1eady hai g\u00f3c xOy v\u00e0 aOb l\u00e0 hai g\u00f3c: ","select":["A. b\u00f9 nhau","B. k\u1ec1 nhau","C. k\u1ec1 b\u00f9","D. ph\u1ee5 nhau"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3: <br\/>$\\widehat{xOy}$ + $\\widehat{aOb}$ = $50^o$ + $40^o$ = $90^o$<br\/>Suy ra hai g\u00f3c xOy v\u00e0 aOb l\u00e0 hai g\u00f3c ph\u1ee5 nhau<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'>D. ph\u1ee5 nhau<\/span><\/span> <br\/><\/span><span class='basic_left'><span class='basic_green'>Nh\u1eadn x\u00e9t:<\/span> Hai g\u00f3c ph\u1ee5 nhau l\u00e0 hai g\u00f3c c\u00f3 t\u1ed5ng s\u1ed1 \u0111o b\u1eb1ng $90^o$<\/span>","column":2}]}],"id_ques":2244},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" Bi\u1ebft $\\widehat{xOy}$ = $105^o$, $\\widehat{mOn}$ = $75^o$. V\u1eady hai g\u00f3c xOy v\u00e0 mOn l\u00e0 hai g\u00f3c: ","select":["A. b\u00f9 nhau","B. k\u1ec1 nhau","C. k\u1ec1 b\u00f9","D. ph\u1ee5 nhau"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3: <br\/>$\\widehat{xOy}$ + $\\widehat{mOn}$ = $105^o$ + $75^o$ = $180^o$<br\/>Suy ra hai g\u00f3c xOy v\u00e0 mOn l\u00e0 hai g\u00f3c b\u00f9 nhau<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'>A. b\u00f9 nhau<\/span><\/span> <br\/><\/span><span class='basic_left'><span class='basic_green'>Nh\u1eadn x\u00e9t:<\/span> Hai g\u00f3c b\u00f9 nhau l\u00e0 hai g\u00f3c c\u00f3 t\u1ed5ng s\u1ed1 \u0111o b\u1eb1ng $180^o$<\/span>","column":2}]}],"id_ques":2245},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 ho\u1eb7c ch\u1eef th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["4"],["C"]]],"list":[{"point":5,"width":60,"type_input":"","ques":"<span class='basic_left'>V\u1ebd tam gi\u00e1c ABC, bi\u1ebft ba c\u1ea1nh BC = 7cm, AB = 4cm, AC = 6cm.<br\/><b>C\u00e1ch v\u1ebd:<\/b><br\/>+ V\u1ebd \u0111o\u1ea1n th\u1eb3ng BC = 7cm<br\/>+ V\u1ebd cung tr\u00f2n t\u00e2m B, b\u00e1n k\u00ednh _input_ cm<br\/>+ V\u1ebd cung tr\u00f2n t\u00e2m _input_, b\u00e1n k\u00ednh 6cm.<br\/>+ L\u1ea5y m\u1ed9t giao \u0111i\u1ec3m c\u1ee7a hai cung tr\u00ean, g\u1ecdi giao \u0111i\u1ec3m \u0111\u00f3 l\u00e0 A<br\/>+ V\u1ebd \u0111o\u1ea1n th\u1eb3ng AB, AC, ta c\u00f3 $\\triangle$ABC.<\/span>","hint":"","explain":"<span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/><span class='basic_left'><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/H626_D118.png' \/><\/center><b>C\u00e1ch v\u1ebd:<\/b><br\/>+ V\u1ebd \u0111o\u1ea1n th\u1eb3ng BC = 7cm<br\/>+ V\u1ebd cung tr\u00f2n t\u00e2m B, b\u00e1n k\u00ednh 4cm<br\/>+ V\u1ebd cung tr\u00f2n t\u00e2m C, b\u00e1n k\u00ednh 6cm.<br\/>+ L\u1ea5y m\u1ed9t giao \u0111i\u1ec3m c\u1ee7a hai cung tr\u00ean, g\u1ecdi giao \u0111i\u1ec3m \u0111\u00f3 l\u00e0 A<br\/>+ V\u1ebd \u0111o\u1ea1n th\u1eb3ng AB, AC, ta c\u00f3 $\\triangle$ABC.<br\/>V\u1eady s\u1ed1 ho\u1eb7c ch\u1eef c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng theo th\u1ee9 t\u1ef1 t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi l\u00e0:<span class='basic_pink'> 4; C<\/span><\/span> <\/span> <br\/> "}]}],"id_ques":2246},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t \u0111\u1ec3 \u0111i\u1ec1n v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/H626_D120.png' \/><\/center>Cho h\u00ecnh v\u1ebd nh\u01b0 tr\u00ean. Cho h\u00ecnh v\u1ebd nh\u01b0 tr\u00ean. D\u1ef1a v\u00e0o h\u00ecnh v\u1ebd h\u00e3y k\u1ec3 t\u00ean hai tam gi\u00e1c c\u00f3 hai g\u00f3c k\u1ec1 b\u00f9 nhau.","select":["A. $\\triangle$ABH v\u00e0 $\\triangle$ACH","B. $\\triangle$BCA v\u00e0 $\\triangle$AHC","C. $\\triangle$ABC v\u00e0 $\\triangle$ACH","D. $\\triangle$ABC v\u00e0 $\\triangle$AHB"],"hint":"","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/H626_D121.png' \/><\/center>Quan s\u00e1t h\u00ecnh v\u1ebd ta th\u1ea5y:<br\/>Hai g\u00f3c k\u1ec1 b\u00f9 nhau l\u00e0: $\\widehat{AHB}$ v\u00e0 $\\widehat{AHC}$<br\/> V\u1eady hai tam gi\u00e1c c\u00f3 hai g\u00f3c k\u1ec1 b\u00f9 nhau l\u00e0: $\\triangle$AHB v\u00e0 $\\triangle$AHC (hay $\\triangle$ABH v\u00e0 $\\triangle$ACH) <br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'>A. $\\triangle$ABH v\u00e0 $\\triangle$ACH<\/span><\/span> <br\/>","column":2}]}],"id_ques":2247},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" Cho $\\widehat{aOb}$ = $120^o$. Bi\u1ebft tia Ot l\u00e0 tia ph\u00e2n gi\u00e1c c\u1ee7a $\\widehat{aOb}$. T\u00ednh $\\widehat{tOb}$","select":["A. $50^o$","B. $60^o$","C. $70^o$","D. $80^o$"],"hint":"","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/H626_D124.png' \/><\/center>Tia Ot l\u00e0 tia ph\u00e2n gi\u00e1c c\u1ee7a $\\widehat{aOb}$ <br\/>Suy ra $\\widehat{aOt}$ = $\\widehat{tOb}$ = $\\dfrac{1}{2}$ $\\widehat{aOb}$ = $\\dfrac{1}{2}$. $120^o$ = $60^o$<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n : <span class='basic_pink'>B. $60^o$<\/span><\/span> <br\/>","column":2}]}],"id_ques":2248},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" Tr\u00ean c\u00f9ng m\u1ed9t n\u1eeda m\u1eb7t ph\u1eb3ng b\u1edd c\u00f3 ch\u1ee9a tia Ox, v\u1ebd hai tia Oy v\u00e0 Oz sao cho $\\widehat{xOy}$ = $55^o$, $\\widehat{xOz}$ = $110^o$. H\u00e3y ch\u1ecdn c\u00e2u sai:","select":["A. Tia Oy l\u00e0 tia ph\u00e2n gi\u00e1c c\u1ee7a g\u00f3c xOz","B. Tia Oz l\u00e0 tia ph\u00e2n gi\u00e1c c\u1ee7a g\u00f3c xOz","C. Tia Oy n\u1eb1m gi\u1eefa hai tia Ox v\u00e0 Oz","D. $\\widehat{yOz}$ = $55^o$"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/H626_D126.png' \/><\/center>Ta c\u00f3: $\\widehat{xOy}$ < $\\widehat{xOz}$ (v\u00ec $55^o$ < $110^o$)<br\/>N\u00ean <b>tia Oy n\u1eb1m gi\u1eefa hai tia Ox v\u00e0 Oz<\/b> (1)<br\/>Suy ra $\\widehat{xOy}$ + $\\widehat{yOz}$ = $\\widehat{xOz}$ <br\/>Thay $\\widehat{xOy}$ = $55^o$, $\\widehat{xOz}$ = $110^o$, ta \u0111\u01b0\u1ee3c:<br\/> $55^o$ + $\\widehat{yOz}$ = $110^o$<br\/>$\\widehat{yOz}$ = $110^o$ - $55^o$ = $55^o$<br\/>M\u00e0 $\\widehat{xOy}$ = $55^o$ n\u00ean <b>$\\widehat{xOy}$ = $\\widehat{yOz}$<\/b> (2)<br\/>T\u1eeb (1) v\u00e0 (2) suy ra <b>tia Oy l\u00e0 tia ph\u00e2n gi\u00e1c c\u1ee7a g\u00f3c xOz<\/b><br\/>V\u1eady \u0111\u00e1p \u00e1n sai l\u00e0: : <span class='basic_pink'>B. Tia Oz l\u00e0 tia ph\u00e2n gi\u00e1c c\u1ee7a g\u00f3c xOz<\/span><\/span> <br\/><\/span><span class='basic_left'><span class='basic_green'>Nh\u1eadn x\u00e9t:<\/span><br\/><b>Oy l\u00e0 tia ph\u00e2n gi\u00e1c c\u1ee7a g\u00f3c xOz khi:<\/b><br\/>+ Tia Oy l\u00e0 tia n\u1eb1m gi\u1eefa hai tia Ox v\u00e0 Oz<br\/>+ $\\widehat{xOy}$ = $\\widehat{yOz}$ <\/span>","column":2}]}],"id_ques":2249},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/H626_D130.png' \/><\/center>Cho h\u00ecnh v\u1ebd c\u00f3 s\u1ed1 \u0111o nh\u01b0 tr\u00ean. T\u00ednh $\\widehat{yOz}$ . ","select":["A. $\\widehat{yOz}$ = $38^o$","B. $\\widehat{yOz}$ = $40^o$","C. $\\widehat{yOz}$ = $42^o$","D. $\\widehat{yOz}$ = $122^o$"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> B\u01b0\u1edbc 1: T\u00ecm tia n\u1eb1m gi\u1eefa<br\/>B\u01b0\u1edbc 2: D\u1ef1a v\u00e0o \u0111\u1eb3ng th\u1ee9c c\u1ed9ng g\u00f3c \u0111\u1ec3 t\u00ednh $\\widehat{yOz}$<\/span> <br\/><span class='basic_left'><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/ontapchuong/lv1/img\/H626_D130.png' \/><\/center> Tr\u00ean n\u1eeda m\u1eb7t ph\u1eb3ng b\u1edd ch\u1ee9a tia Ox ta c\u00f3:<br\/> $\\widehat{xOy}$ < $\\widehat{xOz}$ ( v\u00ec $42^o$ < $80^o$)<br\/>Do \u0111\u00f3 tia Oy n\u1eb1m gi\u1eefa hai tia Ox v\u00e0 Oz <br\/>Suy ra $\\widehat{xOy}$ + $\\widehat{yOz}$ = $\\widehat{xOz}$<br\/>Thay $\\widehat{xOy}$ = $42^o$, $\\widehat{xOz}$ = $80^o$, ta \u0111\u01b0\u1ee3c:<br\/> $42^o$ + $\\widehat{yOz}$ = $80^o$<br\/>Suy ra $\\widehat{yOz}$ = $80^o$ - $42^o$ = $38^o$<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'>A. $\\widehat{yOz}$ = $38^o$<\/span><\/span> <br\/><\/span>","column":2}]}],"id_ques":2250}],"lesson":{"save":0,"level":1}}