{"common":{"save":0,"post_id":"1013","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1471","post_id":"1013","mon_id":"0","chapter_id":"0","question":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","options":{"time":24,"part":[{"title":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["70"]]],"list":[{"point":10,"width":40,"content":"","type_input":"","ques":"Cho h\u00ecnh v\u1ebd, bi\u1ebft a \/\/ b. <center><img src='img\/H7C14-44A.png' \/><\/center> <br\/> S\u1ed1 \u0111o c\u1ee7a g\u00f3c $\\widehat{AOB} $ l\u00e0: $\\FormInput[40][bl_elm_true basic_elm basic_blank basic_blank_part]{}^{o} $ ","hint":"","explain":" <center><img src='img\/H7C14-44B.png' \/><\/center> <br\/> K\u1ebb tia Oz \/\/ a \/\/ b <br\/> C\u00f3 a \/\/ Oz n\u00ean $\\widehat{O_{1}} = \\widehat{A} = 40^{o} $ (hai g\u00f3c so le trong) <br\/> C\u00f3 Oz \/\/ b n\u00ean $\\widehat{O_{2}} = \\widehat{B} = 30^{o} $ (hai g\u00f3c so le trong) <br\/> Do \u0111\u00f3 $ \\widehat{AOB} = \\widehat{O_{1}} + \\widehat{O_{2}} = 40^{o} + 30^{o} = 70^{o} $ <br\/> <br\/> <span class='basic_pink'>V\u1eady $ \\widehat{AOB} = 70^{o} $ <\/span><\/span> <br\/>"}]}]},"correct":"","level":"3","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:23:00"},{"id":"1472","post_id":"1013","mon_id":"0","chapter_id":"0","question":"S\u1eafp x\u1ebfp c\u00e1c c\u00e2u","options":{"time":24,"part":[{"time":3,"title":"S\u1eafp x\u1ebfp c\u00e1c c\u00e2u","title_trans":"Cho tam gi\u00e1c ABC. V\u1ebd tia ph\u00e2n gi\u00e1c BD c\u1ee7a g\u00f3c B. T\u1eeb A k\u1ebb \u0111\u01b0\u1eddng th\u1eb3ng song song v\u1edbi BD, c\u1eaft tia \u0111\u1ed1i c\u1ee7a tia BC t\u1ea1i E. <br\/> H\u00e3y s\u1eafp x\u1ebfp c\u00e1c \u00fd ch\u1ee9ng minh $\\widehat{BAE} = \\widehat{BEA} $ ","temp":"sequence","correct":[[[3],[1],[2],[4]]],"list":[{"point":10,"image":"","left":["M\u00e0 $\\widehat{B_{1}} = \\widehat{B_{2}}$ ","Ta c\u00f3 AE \/\/ BD n\u00ean $\\widehat{BAE} = \\widehat{B_{1}} $ ","L\u1ea1i c\u00f3 AE \/\/ BD n\u00ean $\\widehat{BEA} = \\widehat{B_{2}}$","V\u1eady $\\widehat{BAE} = \\widehat{BEA} $"],"top":70,"hint":"","explain":"<center><img src='img\/H7C15-22.png' \/><\/center> <br\/> Ta c\u00f3 AE \/\/ BD n\u00ean $\\widehat{BAE} = \\widehat{B_{1}} $ (hai g\u00f3c so le trong) <br\/> L\u1ea1i c\u00f3 AE \/\/ BD n\u00ean $\\widehat{BEA} = \\widehat{B_{2}}$ (c\u1eb7p g\u00f3c \u0111\u1ed3ng v\u1ecb) <br\/> M\u00e0 BD l\u00e0 ph\u00e2n gi\u00e1c c\u1ee7a g\u00f3c B n\u00ean $\\widehat{B_{1}} = \\widehat{B_{2}}$ <br\/> Do v\u1eady $\\widehat{BAE} = \\widehat{BEA} $. "}]}]},"correct":"","level":"3","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:23:00"},{"id":"1473","post_id":"1013","mon_id":"0","chapter_id":"0","question":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","options":{"time":24,"part":[{"title":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["40"]]],"list":[{"point":10,"width":40,"content":"","type_input":"","ques":" Cho h\u00ecnh v\u1ebd nh\u01b0 sau, bi\u1ebft Ax \/\/ By <center><img src='img\/H7C14-46A.png' \/><\/center> <br\/> S\u1ed1 \u0111o c\u1ee7a g\u00f3c $\\widehat{OBy} $ l\u00e0: $\\FormInput[40][bl_elm_true basic_elm basic_blank basic_blank_part]{}^{o} $ ","hint":"","explain":" <center><img src='img\/H7C14-46B.png' \/><\/center> <br\/> K\u1ebb tia Oz \/\/ Ax \/\/ By <br\/> C\u00f3 Ax \/\/ Oz n\u00ean $\\widehat{O_{1}} = \\widehat{A} = 60^{o} $ (hai g\u00f3c so le trong) <br\/> C\u00f3 $\\widehat{O_{1}} + \\widehat{O_{2}} = \\widehat{AOB} $<br\/> $ \\Rightarrow \\widehat{O_{2}} $$ = \\widehat{AOB} - \\widehat{O_{1}} \\\\ = 100^{o} - 60^{o} \\\\ = 40^{o} $ <br\/> V\u00ec Oz \/\/ By n\u00ean $\\widehat{OBy} = \\widehat{O_{2}} = 40^{o} $ (hai g\u00f3c so le trong) <br\/> <br\/> <span class='basic_pink'>V\u1eady $ \\widehat{OBy} = 40^{o} $ <\/span><\/span> <br\/>"}]}]},"correct":"","level":"3","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:23:00"}]}