{"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":" Ch\u1ecdn c\u00e2u tr\u1ea3 l\u1eddi sai. <br\/> <span class='basic_left'>N\u1ebfu 1 \u0111\u01b0\u1eddng th\u1eb3ng c\u1eaft hai \u0111\u01b0\u1eddng th\u1eb3ng, trong c\u00e1c g\u00f3c t\u1ea1o th\u00e0nh c\u00f3 m\u1ed9t c\u1eb7p g\u00f3c so le trong b\u1eb1ng nhau th\u00ec: <\/span> ","select":["A. c\u1eb7p g\u00f3c so le trong c\u00f2n l\u1ea1i b\u1eb1ng nhau ","B. m\u1ed7i c\u1eb7p g\u00f3c \u0111\u1ed3ng v\u1ecb b\u00f9 nhau ","C. m\u1ed7i c\u1eb7p g\u00f3c trong c\u00f9ng ph\u00eda b\u00f9 nhau ","D. m\u1ed7i c\u1eb7p g\u00f3c ngo\u00e0i c\u00f9ng ph\u00eda b\u00f9 nhau "],"hint":"","explain":"C\u00e2u sai l\u00e0 B. V\u00ec: <br\/> N\u1ebfu 1 \u0111\u01b0\u1eddng th\u1eb3ng c\u1eaft hai \u0111\u01b0\u1eddng th\u1eb3ng, trong c\u00e1c g\u00f3c t\u1ea1o th\u00e0nh c\u00f3 m\u1ed9t c\u1eb7p g\u00f3c so le trong b\u1eb1ng nhau <br\/> th\u00ec m\u1ed7i c\u1eb7p g\u00f3c \u0111\u1ed3ng v\u1ecb b\u1eb1ng nhau. <br\/> <br\/> <span class='basic_pink'> Ch\u1ecdn B. <\/span><\/span> ","column":2}]}],"id_ques":1391},{"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":" \u0110i\u1ec1n c\u1ee5m t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng sau: <br\/> '' Hai g\u00f3c ... l\u00e0 hai g\u00f3c m\u00e0 m\u1ed7i c\u1ea1nh c\u1ee7a g\u00f3c n\u00e0y l\u00e0 tia \u0111\u1ed1i m\u1ed9t c\u1ea1nh c\u1ee7a g\u00f3c kia''. ","select":["A. trong c\u00f9ng ph\u00eda ","B. \u0111\u1ed1i \u0111\u1ec9nh ","C. \u0111\u1ed3ng v\u1ecb ","D. so le trong "],"hint":"","explain":" Hai g\u00f3c \u0111\u1ed1i \u0111\u1ec9nh l\u00e0 hai g\u00f3c m\u00e0 m\u1ed7i c\u1ea1nh c\u1ee7a g\u00f3c n\u00e0y l\u00e0 tia \u0111\u1ed1i m\u1ed9t c\u1ea1nh c\u1ee7a g\u00f3c kia. <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 B. <\/span><\/span> ","column":2}]}],"id_ques":1392},{"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":"Quan s\u00e1t h\u00ecnh v\u1ebd, cho bi\u1ebft $\\widehat{DEF}$ v\u00e0 $\\widehat{EAB}$ l\u00e0 m\u1ed9t c\u1eb7p g\u00f3c? <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/hinhhoc/bai3/lv1/img\/H7C13-23.png' \/><\/center> ","select":["A. So le trong ","B. \u0110\u1ed3ng v\u1ecb ","C. K\u1ec1 b\u00f9 ","D. \u0110\u1ed1i \u0111\u1ec9nh "],"hint":"","explain":" $\\widehat{DEF} $ v\u00e0 $\\widehat{EAB}$ l\u00e0 hai g\u00f3c \u0111\u1ed3ng v\u1ecb. <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 B. <\/span><\/span> ","column":2}]}],"id_ques":1393},{"time":9,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["130"]]],"list":[{"point":5,"width":50,"type_input":"","ques":" Cho H\u00ecnh 16, bi\u1ebft $\\widehat{A_{1}} = 130^{o} $ <br\/> S\u1ed1 \u0111o g\u00f3c $\\widehat{B_{3}} $ l\u00e0: $\\FormInput[40][bl_elm_true basic_elm basic_blank basic_blank_part]{}^{o} $ <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/hinhhoc/bai3/lv1/img\/H7C13-16.png' \/><\/center> ","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> N\u1ebfu m\u1ed9t \u0111\u01b0\u1eddng th\u1eb3ng c\u1eaft hai \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 trong c\u00e1c g\u00f3c t\u1ea1o th\u00e0nh c\u00f3 m\u1ed9t c\u1eb7p g\u00f3c so le trong b\u1eb1ng nhau th\u00ec: <br\/> + B\u1ed1n c\u1eb7p g\u00f3c \u0111\u1ed3ng v\u1ecb b\u1eb1ng nhau. <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> C\u00f3 $\\widehat{A_{4}} $ v\u00e0 $\\widehat{B_{4}} $ l\u00e0 hai g\u00f3c so le trong b\u1eb1ng nhau <br\/> N\u00ean : $\\widehat{B_{3}} = \\widehat{A_{1}} = 130^{o} $ (hai g\u00f3c \u0111\u1ed3ng v\u1ecb) <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p s\u1ed1 l\u00e0: $130^{o} $ <\/span><\/span> "}]}],"id_ques":1394},{"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":" Cho H\u00ecnh 13, bi\u1ebft $\\widehat{xAz} = 115^{o} $ <br\/> S\u1ed1 \u0111o g\u00f3c $\\widehat{yBz'} $ l\u00e0? <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/hinhhoc/bai3/lv1/img\/H7C13-13.png' \/><\/center> ","select":["A. $115^{o}$ ","B. $90^{o} $ ","C. $65^{o} $ ","D. $25^{o} $ "],"hint":"","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> N\u1ebfu m\u1ed9t \u0111\u01b0\u1eddng th\u1eb3ng c\u1eaft hai \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 trong c\u00e1c g\u00f3c t\u1ea1o th\u00e0nh c\u00f3 m\u1ed9t c\u1eb7p g\u00f3c so le trong b\u1eb1ng nhau th\u00ec: <br\/> - Hai g\u00f3c \u0111\u1ed3ng v\u1ecb b\u1eb1ng nhau. <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: $\\widehat{xAz} + \\widehat{xAB} = 180^{o}$ (hai g\u00f3c k\u1ec1 b\u00f9) <br\/> $ \\Rightarrow \\widehat{xAB} $$ = 180^{o} - \\widehat{xAz} \\\\ = 180^{o} - 115^{o} \\\\ = 65^{o} $ <br\/> $\\widehat{ABy}$ v\u00e0 $ \\widehat{BAx'}$ l\u00e0 hai c\u1eb7p g\u00f3c so le trong b\u1eb1ng nhau. <br\/> N\u00ean $\\widehat{yBz'} = \\widehat{xAB} = 65^{o}$ (hai g\u00f3c \u0111\u1ed3ng v\u1ecb) <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 C. <\/span><\/span> ","column":4}]}],"id_ques":1395},{"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":" Cho H\u00ecnh 33, bi\u1ebft $\\widehat{G_{1}} + \\widehat{H_{4}} = 180^{o}. $ Ta ch\u1ee9ng minh \u0111\u01b0\u1ee3c: <br\/> <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/hinhhoc/bai3/lv1/img\/H7C13-33.png' \/><\/center> ","select":["A. $\\widehat{G_{1}} + \\widehat{H_{1}} = 180^{o} $ ","B. $\\widehat{G_{1}} + \\widehat{H_{3}} = 180^{o} $ ","C. $\\widehat{G_{3}} + \\widehat{H_{4}} = 180^{o} $ ","D. $\\widehat{G_{4}} + \\widehat{H_{2}} = 180^{o} $ "],"hint":"","explain":" \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 C. V\u00ec: <br\/> Ta c\u00f3 : $ \\widehat{G_{1}} = \\widehat{G_{3}} $ (\u0111\u1ed1i \u0111\u1ec9nh) <br\/> M\u00e0 $\\widehat{G_{1}} + \\widehat{H_{4}} = 180^{o}$ (gi\u1ea3 thi\u1ebft) <br\/> Suy ra $\\widehat{G_{3}} + \\widehat{H_{4}} = 180^{o} $ <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 C. <\/span><\/span> ","column":2}]}],"id_ques":1396},{"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":" Cho H\u00ecnh 10, $\\widehat{BCd} $ v\u00e0 $\\widehat{MNC}$ l\u00e0 m\u1ed9t c\u1eb7p g\u00f3c: <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/hinhhoc/bai3/lv1/img\/H7C13-10.png' \/><\/center> ","select":["A. So le trong ","B. So le ngo\u00e0i ","C. \u0110\u1ed3ng v\u1ecb ","D. \u0110\u1ed1i \u0111\u1ec9nh "],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> C\u0103n c\u1ee9 v\u00e0o v\u1ecb tr\u00ed c\u1ee7a hai g\u00f3c so v\u1edbi hai \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 \u0111\u01b0\u1eddng th\u1ee9 ba c\u1eaft ch\u00fang (c\u00e1t tuy\u1ebfn). <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\widehat{BCd} $ v\u00e0 $\\widehat{MNC}$ l\u00e0 hai g\u00f3c \u0111\u1ed3ng v\u1ecb. <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 C. \u0110\u1ed3ng v\u1ecb<\/span><\/span> ","column":2}]}],"id_ques":1397},{"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":" Cho H\u00ecnh 10, $\\widehat{ABC} $ v\u00e0 $\\widehat{AMN}$ l\u00e0 m\u1ed9t c\u1eb7p g\u00f3c: <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/hinhhoc/bai3/lv1/img\/H7C13-10.png' \/><\/center> ","select":["A. So le trong ","B. So le ngo\u00e0i ","C. \u0110\u1ed3ng v\u1ecb ","D. K\u1ec1 b\u00f9 "],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> C\u0103n c\u1ee9 v\u00e0o v\u1ecb tr\u00ed c\u1ee7a hai g\u00f3c so v\u1edbi hai \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 \u0111\u01b0\u1eddng th\u1ee9 ba c\u1eaft ch\u00fang (c\u00e1t tuy\u1ebfn). <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\widehat{ABC} $ v\u00e0 $\\widehat{AMN}$ l\u00e0 hai g\u00f3c \u0111\u1ed3ng v\u1ecb. <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 C. <\/span><\/span> ","column":2}]}],"id_ques":1398},{"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":" Cho H\u00ecnh 9, bi\u1ebft $\\widehat{A_{1}} = \\widehat{B_{3}} $ <br\/> C\u00e2u tr\u1ea3 l\u1eddi n\u00e0o l\u00e0 kh\u00f4ng \u0111\u00fang? <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/hinhhoc/bai3/lv1/img\/H7C13-09.png' \/><\/center> ","select":["A. $\\widehat{A_{4}} = \\widehat{B_{1}} $ ","B. $\\widehat{A_{1}} + \\widehat{B_{1}} = 180^{o} $ ","C. $\\widehat{A_{4}} = \\widehat{B_{3}} $ ","D. $\\widehat{A_{2}} = \\widehat{B_{1}} $ "],"hint":"","explain":" Ta c\u00f3 $A_{1} $ v\u00e0 $B_{3}$ l\u00e0 hai g\u00f3c so le trong, $\\widehat{A_{1}} = \\widehat{B_{3}} $(gi\u1ea3 thi\u1ebft) <br\/> Suy ra hai g\u00f3c so le trong c\u00f2n l\u1ea1i b\u1eb1ng nhau, Hai g\u00f3c \u0111\u1ed3ng v\u1ecb b\u1eb1ng nhau, Hai g\u00f3c trong c\u00f9ng ph\u00eda b\u00f9 nhau<br\/>Hay $\\widehat{A_{4}} = \\widehat{B_{1}} $, $\\widehat{A_{1}} + \\widehat{B_{1}} = 180^{o} $, $\\widehat{A_{2}} = \\widehat{B_{1}} $, $\\widehat{A_{4}} + \\widehat{B_{3}} $ = $180^{o}$<br\/> C\u00e2u Sai l\u00e0 C. V\u00ec $\\widehat{A_{4}} + \\widehat{B_{3}} = 180^{o} $ (hai g\u00f3c trong c\u00f9ng ph\u00eda). <br\/> <br\/> <span class='basic_pink'> Ch\u1ecdn C. <\/span><\/span> ","column":2}]}],"id_ques":1399},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00fang hay sai","title_trans":"","temp":"true_false","correct":[["t","f","t","t"]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/hinhhoc/bai3/lv1/img\/H7C13-08.png' \/><\/center>","image":"","col_name":["","\u0110\u00fang","Sai"],"arr_ques":["$\\widehat{E_{1}} $ v\u00e0 $\\widehat{E_{2}} $ k\u1ec1 b\u00f9 ","$\\widehat{E_{2}} $ v\u00e0 $\\widehat{D_{1}} $ \u0111\u1ed3ng v\u1ecb ","$\\widehat{E_{3}} $ v\u00e0 $\\widehat{D_{4}} $ so le trong ","$\\widehat{E_{1}} = \\widehat{E_{3}} $"],"hint":"","explain":["\u0110\u00fang","<br\/> Sai. V\u00ec $\\widehat{E_{2}} $ v\u00e0 $\\widehat{D_{1}} $ so le trong ","<br\/> \u0110\u00fang","<br\/> \u0110\u00fang"]}]}],"id_ques":1400},{"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":" Cho H\u00ecnh 7, trong \u0111\u00f3 $\\widehat{A_{1}} = \\widehat{B_{2}} $. Khi \u0111\u00f3: <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/hinhhoc/bai3/lv1/img\/H7C13-07.png' \/><\/center> ","select":["A. Hai g\u00f3c $\\widehat{A_{4}}$ v\u00e0 $\\widehat{B_{3}}$ kh\u00f4ng b\u1eb1ng nhau ","B. Hai g\u00f3c $\\widehat{A_{2}}$ v\u00e0 $\\widehat{B_{1}}$ kh\u00f4ng b\u1eb1ng nhau ","C. $\\widehat{A_{1}} = \\widehat{B_{3}} $ ","D. $\\widehat{A_{3}} = \\widehat{B_{2}} $ "],"hint":"","explain":" Ta c\u00f3 $A_{1} $ v\u00e0 $B_{2}$ l\u00e0 hai g\u00f3c so le trong, $\\widehat{A_{1}} = \\widehat{B_{2}} $(gi\u1ea3 thi\u1ebft) <br\/> Suy ra hai g\u00f3c so le trong c\u00f2n l\u1ea1i b\u1eb1ng nhau, Hai g\u00f3c \u0111\u1ed3ng v\u1ecb b\u1eb1ng nhau. <br\/> C\u00e2u \u0111\u00fang l\u00e0 D. $\\widehat{A_{3}} = \\widehat{B_{2}} $ (hai g\u00f3c \u0111\u1ed3ng v\u1ecb) <br\/> A. Sai. V\u00ec $\\widehat{A_{4}} = \\widehat{B_{3}} $ (hai g\u00f3c \u0111\u1ed3ng v\u1ecb) <br\/> B. Sai. V\u00ec $\\widehat{A_{2}} = \\widehat{B_{1}} $ (hai g\u00f3c \u0111\u1ed3ng v\u1ecb) <br\/> C. Sai. V\u00ec $\\widehat{A_{1}} $ v\u00e0 $ \\widehat{B_{3}} $ l\u00e0 hai g\u00f3c trong c\u00f9ng ph\u00eda. <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 D. <\/span><\/span> ","column":2}]}],"id_ques":1401},{"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":" T\u00ecm c\u00e2u tr\u1ea3 l\u1eddi sai. <br\/> Cho H\u00ecnh 6, bi\u1ebft \u0111\u01b0\u1eddng th\u1eb3ng c l\u1ea7n l\u01b0\u1ee3t c\u1eaft hai \u0111\u01b0\u1eddng th\u1eb3ng a, b t\u1ea1i M, N. Ta c\u00f3: <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/hinhhoc/bai3/lv1/img\/H7C13-06.png' \/><\/center> ","select":["A. B\u1ed1n g\u00f3c \u0111\u1ec9nh M, v\u00e0 b\u1ed1n g\u00f3c \u0111\u1ec9nh N kh\u00e1c g\u00f3c b\u1eb9t ","B. Hai c\u1eb7p g\u00f3c so le trong l\u00e0: $\\widehat{M_{1}} $ v\u00e0 $\\widehat{N_{3}} $; $\\widehat{M_{4}} $ v\u00e0 $\\widehat{N_{2}} $ ","C. B\u1ed1n c\u1eb7p g\u00f3c \u0111\u1ed3ng v\u1ecb l\u00e0: $\\widehat{M_{1}} $ v\u00e0 $\\widehat{N_{1}} $; $\\widehat{M_{2}} $ v\u00e0 $\\widehat{N_{2}} $; $\\widehat{M_{3}} $ v\u00e0 $\\widehat{N_{3}} $; $\\widehat{M_{4}} $ v\u00e0 $\\widehat{N_{4}} $ ","D. Hai c\u1eb7p g\u00f3c so le trong l\u00e0: $\\widehat{M_{1}} $ v\u00e0 $\\widehat{N_{2}} $; $\\widehat{M_{4}} $ v\u00e0 $\\widehat{N_{3}} $ "],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> C\u0103n c\u1ee9 v\u00e0o v\u1ecb tr\u00ed c\u1ee7a hai g\u00f3c so v\u1edbi hai \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 \u0111\u01b0\u1eddng th\u1ee9 ba c\u1eaft ch\u00fang (c\u00e1t tuy\u1ebfn). <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> C\u00e2u sai l\u00e0 D. V\u00ec: <br\/> Hai c\u1eb7p g\u00f3c $\\widehat{M_{1}} $ v\u00e0 $\\widehat{N_{2}} $; $\\widehat{M_{4}} $ v\u00e0 $\\widehat{N_{3}} $ l\u00e0 hai c\u1eb7p g\u00f3c trong c\u00f9ng ph\u00eda. <br\/> <br\/> <span class='basic_pink'> Ch\u1ecdn D. <\/span><\/span> ","column":1}]}],"id_ques":1402},{"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":"Cho H\u00ecnh 5. <br\/> S\u1ed1 c\u1eb7p g\u00f3c \u0111\u1ed3ng v\u1ecb l\u00e0: <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/hinhhoc/bai3/lv1/img\/H7C13-05.png' \/><\/center> ","select":["A. 1 ","B. 2 ","C. 3 ","D. 4 "],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> C\u0103n c\u1ee9 v\u00e0o v\u1ecb tr\u00ed c\u1ee7a hai g\u00f3c so v\u1edbi hai \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 \u0111\u01b0\u1eddng th\u1ee9 ba c\u1eaft ch\u00fang (c\u00e1t tuy\u1ebfn). <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> X\u00e9t hai \u0111\u01b0\u1eddng th\u1eb3ng a v\u00e0 b c\u00f9ng v\u1edbi c\u00e1t tuy\u1ebfn c th\u00ec: <br\/> C\u00f3 4 c\u1eb7p g\u00f3c \u0111\u1ed3ng v\u1ecb l\u00e0: $\\widehat{A_{1}} $ v\u00e0 $\\widehat{B_{1}} $, $\\widehat{A_{2}} $ v\u00e0 $\\widehat{B_{2}} $, $\\widehat{A_{3}} $ v\u00e0 $\\widehat{B_{3}} $, $\\widehat{A_{4}} $ v\u00e0 $\\widehat{B_{4}} $ . <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 D. <\/span><\/span> ","column":4}]}],"id_ques":1403},{"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":"Cho H\u00ecnh 4. <br\/> $\\widehat{OPI} $ v\u00e0 $\\widehat{TNO} $ l\u00e0 m\u1ed9t c\u1eb7p g\u00f3c: <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/hinhhoc/bai3/lv1/img\/H7C13-04.png' \/><\/center> ","select":["A. K\u1ec1 b\u00f9 ","B. So le trong ","C. \u0110\u1ed3ng v\u1ecb ","D. \u0110\u1ed1i \u0111\u1ec9nh "],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> C\u0103n c\u1ee9 v\u00e0o v\u1ecb tr\u00ed c\u1ee7a hai g\u00f3c so v\u1edbi hai \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 \u0111\u01b0\u1eddng th\u1ee9 ba c\u1eaft ch\u00fang (c\u00e1t tuy\u1ebfn). <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\widehat{OPI} $ v\u00e0 $\\widehat{TNO} $ l\u00e0 m\u1ed9t c\u1eb7p g\u00f3c: \u0110\u1ed3ng v\u1ecb <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 C. <\/span><\/span> ","column":2}]}],"id_ques":1404},{"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 H\u00ecnh 4. <br\/> $\\widehat{IPO} $ v\u00e0 $\\widehat{POR} $ l\u00e0 m\u1ed9t c\u1eb7p g\u00f3c: <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/hinhhoc/bai3/lv1/img\/H7C13-04.png' \/><\/center> ","select":["A. \u0110\u1ed3ng v\u1ecb ","B. So le trong ","C. K\u1ec1 b\u00f9 ","D. \u0110\u1ed1i \u0111\u1ec9nh "],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> C\u0103n c\u1ee9 v\u00e0o v\u1ecb tr\u00ed c\u1ee7a hai g\u00f3c so v\u1edbi hai \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 \u0111\u01b0\u1eddng th\u1ee9 ba c\u1eaft ch\u00fang (c\u00e1t tuy\u1ebfn). <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\widehat{IPO} $ v\u00e0 $\\widehat{POR} $ l\u00e0 m\u1ed9t c\u1eb7p g\u00f3c: So le trong <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 B. <\/span><\/span> ","column":2}]}],"id_ques":1405},{"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":"Cho H\u00ecnh 3. <br\/> C\u1eb7p g\u00f3c so le trong l\u00e0: <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/hinhhoc/bai3/lv1/img\/H7C13-03.png' \/><\/center> ","select":["A. $\\widehat{A_{1}} $ v\u00e0 $\\widehat{B_{1}} $ ","B. $\\widehat{A_{1}} $ v\u00e0 $\\widehat{B_{2}} $ ","C. $\\widehat{A_{3}} $ v\u00e0 $\\widehat{B_{3}} $ ","D. $\\widehat{A_{1}} $ v\u00e0 $\\widehat{B_{3}} $ "],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> C\u0103n c\u1ee9 v\u00e0o v\u1ecb tr\u00ed c\u1ee7a hai g\u00f3c so v\u1edbi hai \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 \u0111\u01b0\u1eddng th\u1ee9 ba c\u1eaft ch\u00fang (c\u00e1t tuy\u1ebfn). <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> X\u00e9t hai \u0111\u01b0\u1eddng th\u1eb3ng a v\u00e0 b c\u00f9ng v\u1edbi c\u00e1t tuy\u1ebfn c th\u00ec: <br\/> C\u1eb7p g\u00f3c so le trong l\u00e0 $\\widehat{A_{1}} $ v\u00e0 $\\widehat{B_{3}} $, $\\widehat{A_{4}} $ v\u00e0 $\\widehat{B_{2}} $ . <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 D. <\/span><\/span> ","column":2}]}],"id_ques":1406},{"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":"Cho H\u00ecnh 3. <br\/> C\u1eb7p g\u00f3c \u0111\u1ed3ng v\u1ecb l\u00e0: <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/hinhhoc/bai3/lv1/img\/H7C13-03.png' \/><\/center> ","select":["A. $\\widehat{A_{1}} $ v\u00e0 $\\widehat{B_{1}} $ ","B. $\\widehat{A_{1}} $ v\u00e0 $\\widehat{B_{3}} $","C. $\\widehat{A_{4}} $ v\u00e0 $\\widehat{B_{2}} $ ","D. $\\widehat{A_{2}} $ v\u00e0 $\\widehat{B_{3}} $ "],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> C\u0103n c\u1ee9 v\u00e0o v\u1ecb tr\u00ed c\u1ee7a hai g\u00f3c so v\u1edbi hai \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 \u0111\u01b0\u1eddng th\u1ee9 ba c\u1eaft ch\u00fang (c\u00e1t tuy\u1ebfn). <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> X\u00e9t hai \u0111\u01b0\u1eddng th\u1eb3ng a v\u00e0 b c\u00f9ng v\u1edbi c\u00e1t tuy\u1ebfn c th\u00ec: <br\/> C\u00e1c c\u1eb7p g\u00f3c \u0111\u1ed3ng v\u1ecb l\u00e0 $\\widehat{A_{1}} $ v\u00e0 $\\widehat{B_{1}} $ ,$\\widehat{A_{2}} $ v\u00e0 $\\widehat{B_{2}} $, $\\widehat{A_{3}} $ v\u00e0 $\\widehat{B_{3}} $, $\\widehat{A_{4}} $ v\u00e0 $\\widehat{B_{4}} $. <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 A. <\/span><\/span> ","column":2}]}],"id_ques":1407},{"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 H\u00ecnh 2. <br\/> G\u00f3c so le trong v\u1edbi g\u00f3c $\\widehat{N_{1}}$ l\u00e0: <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/hinhhoc/bai3/lv1/img\/H7C13-02.png' \/><\/center> ","select":["A. $\\widehat{M_{3}}$ ","B. $\\widehat{M_{2}}$ ","C. $\\widehat{M_{1}}$ ","D. $\\widehat{N_{2}}$ "],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> C\u0103n c\u1ee9 v\u00e0o v\u1ecb tr\u00ed c\u1ee7a hai g\u00f3c so v\u1edbi hai \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 \u0111\u01b0\u1eddng th\u1ee9 ba c\u1eaft ch\u00fang (c\u00e1t tuy\u1ebfn). <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> X\u00e9t hai \u0111\u01b0\u1eddng th\u1eb3ng a v\u00e0 b c\u00f9ng v\u1edbi c\u00e1t tuy\u1ebfn c th\u00ec: <br\/> G\u00f3c $\\widehat{M_{2}}$ so le trong v\u1edbi g\u00f3c $\\widehat{N_{1}}$ . <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 B. <\/span><\/span> ","column":4}]}],"id_ques":1408},{"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":"Cho H\u00ecnh 1. <br\/> G\u00f3c \u0111\u1ed3ng v\u1ecb v\u1edbi g\u00f3c $\\widehat{A_{1}}$ l\u00e0: <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/hinhhoc/bai3/lv1/img\/H7C13-01.png' \/><\/center> ","select":["A. $\\widehat{B_{1}}$ ","B. $\\widehat{B_{2}}$ ","C. $\\widehat{B_{3}}$ ","D. $\\widehat{B_{4}}$ "],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> C\u0103n c\u1ee9 v\u00e0o v\u1ecb tr\u00ed c\u1ee7a hai g\u00f3c so v\u1edbi hai \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 \u0111\u01b0\u1eddng th\u1ee9 ba c\u1eaft ch\u00fang (c\u00e1t tuy\u1ebfn). <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> X\u00e9t hai \u0111\u01b0\u1eddng th\u1eb3ng a v\u00e0 b c\u00f9ng v\u1edbi c\u00e1t tuy\u1ebfn c th\u00ec: <br\/> G\u00f3c $\\widehat{B_{3}}$ \u0111\u1ed3ng v\u1ecb v\u1edbi g\u00f3c $\\widehat{A_{1}}$ . <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 C. <\/span><\/span> ","column":4}]}],"id_ques":1409},{"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":"Cho H\u00ecnh 1. <br\/> G\u00f3c so le trong v\u1edbi g\u00f3c $\\widehat{A_{1}}$ l\u00e0: <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/hinhhoc/bai3/lv1/img\/H7C13-01.png' \/><\/center> ","select":["A. $\\widehat{B_{1}}$ ","B. $\\widehat{B_{2}}$ ","C. $\\widehat{B_{3}}$ ","D. $\\widehat{B_{4}}$ "],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> C\u0103n c\u1ee9 v\u00e0o v\u1ecb tr\u00ed c\u1ee7a hai g\u00f3c so v\u1edbi hai \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 \u0111\u01b0\u1eddng th\u1ee9 ba c\u1eaft ch\u00fang (c\u00e1t tuy\u1ebfn). <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> X\u00e9t hai \u0111\u01b0\u1eddng th\u1eb3ng a v\u00e0 b c\u00f9ng v\u1edbi c\u00e1t tuy\u1ebfn c th\u00ec: <br\/> G\u00f3c $\\widehat{B_{1}}$ so le trong v\u1edbi g\u00f3c $\\widehat{A_{1}}$ . <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 A. <\/span><\/span> ","column":4}]}],"id_ques":1410}],"lesson":{"save":0,"level":1}}