{"common":{"save":0,"post_id":"1004","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1411","post_id":"1004","mon_id":"0","chapter_id":"0","question":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","options":{"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":[[["180"]]],"list":[{"point":10,"width":50,"type_input":"","ques":" Cho H\u00ecnh 17 <br\/> <center><img src='img\/H7C13-17.png' \/><\/center> <br\/> S\u1ed1 \u0111o g\u00f3c $\\widehat{BAx'} + \\widehat{ABy'} $ l\u00e0: $\\FormInput[40][bl_elm_true basic_elm basic_blank basic_blank_part]{}^{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 c\u1eb7p g\u00f3c trong c\u00f9ng ph\u00eda b\u00f9 nhau. <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span> <br\/> Ta c\u00f3: $\\widehat{zAx'} + \\widehat{BAx'} = 180^{o} $ (hai g\u00f3c k\u1ec1 b\u00f9) <br\/> Suy ra $ \\widehat{BAx'}$$ = 180^{o} - \\widehat{zAx'} \\\\ = 180^{o} - 70^{o} \\\\= 110^{o} = \\widehat{yBA} $ <br\/> C\u00f3 $\\widehat{BAx'} $ v\u00e0 $\\widehat{yBA} $ l\u00e0 hai g\u00f3c so le trong b\u1eb1ng nhau <br\/> N\u00ean: $\\widehat{BAx'} + \\widehat{ABy'} = 180^{o} $(hai g\u00f3c trong c\u00f9ng ph\u00eda) <br\/> <br\/><span class='basic_pink'> \u0110\u00e1p s\u1ed1 l\u00e0: $180^{o} $ <\/span><\/span> "}]}]},"correct":"","level":"3","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:22:59"},{"id":"1412","post_id":"1004","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"time":14,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":10,"ques":" Cho H\u00ecnh 11, bi\u1ebft $\\widehat{A_{1}} = \\widehat{B_{5}} $ <br\/> Kh\u1eb3ng \u0111\u1ecbnh n\u00e0o sau \u0111\u00e2y kh\u00f4ng \u0111\u00fang? <center><img src='img\/H7C13-11.png' \/><\/center> ","select":["A. $\\widehat{A_{3}} = \\widehat{B_{7}} $ ","B. $\\widehat{A_{4}} = \\widehat{B_{8}} $ ","C. $\\widehat{A_{2}} = \\widehat{B_{6}} $ ","D. $\\widehat{A_{1}} = \\widehat{B_{6}} $ "],"hint":"","explain":" Ta c\u00f3: $ \\widehat{A_{1}} = \\widehat{A_{3}}; \\widehat{B_{5}} = \\widehat{B_{7}} $ (\u0111\u1ed1i \u0111\u1ec9nh) <br\/> m\u00e0 $\\widehat{A_{1}} = \\widehat{B_{5}} \\Rightarrow \\widehat{A_{3}} = \\widehat{B_{7}} \\Rightarrow $ (A \u0111\u00fang). <br\/> Ta c\u00f3: $\\widehat{A_{1}} + \\widehat{A_{4}} = 180^{o}; \\widehat{B_{5}} + \\widehat{B_{8}} = 180^{o} $ (hai g\u00f3c k\u1ec1 b\u00f9) <br\/> m\u00e0 $\\widehat{A_{1}} = \\widehat{B_{5}} \\Rightarrow \\widehat{A_{4}} = \\widehat{B_{8}} \\Rightarrow $ (B \u0111\u00fang). <br\/> Ta c\u00f3: $\\widehat{A_{1}} + \\widehat{A_{2}} = 180^{o}; \\widehat{B_{5}} + \\widehat{B_{6}} = 180^{o} $ (hai g\u00f3c k\u1ec1 b\u00f9) <br\/> m\u00e0 $\\widehat{A_{1}} = \\widehat{B_{5}} \\Rightarrow \\widehat{A_{2}} = \\widehat{B_{6}} \\Rightarrow $ (C \u0111\u00fang). <br\/> Ta c\u00f3 $\\widehat{B_{5}} + \\widehat{B_{6}} = 180^{o} $ (hai g\u00f3c k\u1ec1 b\u00f9) m\u00e0 $\\widehat{A_{1}} = \\widehat{B_{5}} \\Rightarrow \\widehat{A_{1}} + \\widehat{B_{6}} = 180^{o} \\Rightarrow $ (D Sai). <br\/><br\/> <span class='basic_pink'> Ch\u1ecdn D. <\/span><\/span> <span class='basic_left'> <u> Nh\u1eadn x\u00e9t: <\/u> <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 \u0111\u1ed3ng v\u1ecb b\u1eb1ng nhau th\u00ec: <br\/> - C\u00e1c c\u1eb7p g\u00f3c \u0111\u1ed3ng v\u1ecb c\u00f2n l\u1ea1i b\u1eb1ng nhau. <br\/> - Hai c\u1eb7p g\u00f3c so le trong b\u1eb1ng nhau. <br\/> - Hai c\u1eb7p g\u00f3c trong c\u00f9ng ph\u00eda b\u00f9 nhau. <br\/> - Hai c\u1eb7p g\u00f3c ngo\u00e0i c\u00f9ng ph\u00eda b\u00f9 nhau. <\/span> ","column":2}]}]},"correct":"","level":"3","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:22:59"},{"id":"1413","post_id":"1004","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"time":14,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":10,"ques":" Cho H\u00ecnh 32, bi\u1ebft $\\widehat{S_{1}} + \\widehat{R_{2}} = 180^{o}. $ <br\/> <center><img src='img\/H7C13-32.png' \/><\/center> ","select":["A. $\\widehat{S_{2}} < \\widehat{R_{3}}; \\widehat{S_{4}} > \\widehat{R_{1}} $ ","B. $\\widehat{S_{1}} < \\widehat{R_{3}}; \\widehat{S_{3}} > \\widehat{R_{1}} $ ","C. $\\widehat{S_{3}} + \\widehat{R_{4}} = \\widehat{S_{2}} + \\widehat{R_{1}} $ ","D. $\\widehat{S_{3}} + \\widehat{R_{1}} = 180^{o} $ "],"hint":"","explain":" <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 C. <br\/> $\\widehat{S_{3}} + \\widehat{R_{4}} = \\widehat{S_{2}} + \\widehat{R_{1}} = 180^{o} $<\/span><\/span> ","column":2}]}]},"correct":"","level":"3","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:22:59"}]}