{"common":{"save":0,"post_id":"6667","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6990","post_id":"6667","mon_id":"1158921","chapter_id":"1158939","question":"<p>Cho&nbsp;<span class=\"math-tex\">$\u25b3ABC\\backsim\u25b3DEF$<\/span>&nbsp;. K\u1ebft lu\u1eadn <strong>sai <\/strong>l&agrave;<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\widehat{A}=\\widehat{D}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\widehat{B}=\\widehat{F}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{AB}{AC}=\\dfrac{DE}{DF}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{BC}{EF}=\\dfrac{AB}{DE}$<\/span>"],"correct":"2","level":"1","hint":"","answer":"<p>V&igrave;&nbsp;&nbsp;<span class=\"math-tex\">$\u25b3ABC\\backsim\u25b3DEF$<\/span>&nbsp; n&ecirc;n&nbsp;&nbsp;<span class=\"math-tex\">$\\widehat{B}=\\widehat{E}$<\/span>&nbsp;.<\/p><p>K\u1ebft lu\u1eadn <strong>sai <\/strong>l&agrave;&nbsp; &nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong>&nbsp;<span class=\"math-tex\">$\\widehat{B}=\\widehat{F}$<\/span>&nbsp;.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-09-10 04:22:18","option_type":"math","len":0},{"id":"6992","post_id":"6667","mon_id":"1158921","chapter_id":"1158939","question":"<p>Cho&nbsp;<span class=\"math-tex\">$\u25b3MNP\\backsim\u25b3DEF$<\/span>&nbsp;. K\u1ebft lu\u1eadn \u0111&uacute;ng l&agrave;<\/p>","options":["<strong>A.<\/strong> \u25b3PMN <span class=\"math-tex\">$\\backsim$<\/span> \u25b3FDE","<strong>B.<\/strong> \u25b3NPM <span class=\"math-tex\">$\\backsim$<\/span> \u25b3EDF","<strong>C.<\/strong> \u25b3PNM <span class=\"math-tex\">$\\backsim$<\/span> \u25b3DEF","<strong>D.<\/strong> \u25b3MPN <span class=\"math-tex\">$\\backsim$<\/span> \u25b3DEF"],"correct":"1","level":"1","hint":"","answer":"<p>K\u1ebft lu\u1eadn \u0111&uacute;ng l&agrave;&nbsp; &nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;\u25b3PMN <span class=\"math-tex\">$\\backsim$<\/span> \u25b3FDE.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-09-10 04:24:58","option_type":"math","len":0},{"id":"6993","post_id":"6667","mon_id":"1158921","chapter_id":"1158939","question":"<p>Cho tam gi&aacute;c DEF v&agrave; tam gi&aacute;c MNP. Bi\u1ebft&nbsp;<span class=\"math-tex\">$\\widehat{D}=80^0; \\widehat{F}=30^0; \\widehat{M}=30^0;\\widehat{N}=80^0$<\/span>&nbsp;. K\u1ebft lu\u1eadn \u0111&uacute;ng l&agrave;&nbsp;<\/p>","options":["<strong>A.<\/strong> \u25b3PMN <span class=\"math-tex\">$\\backsim$<\/span> \u25b3DFE","<strong>B.<\/strong> \u25b3DEF <span class=\"math-tex\">$\\backsim$<\/span> \u25b3MNP","<strong>C.<\/strong> \u25b3DFE <span class=\"math-tex\">$\\backsim$<\/span> \u25b3NMP","<strong>D.<\/strong> \u25b3MNP <span class=\"math-tex\">$\\backsim$<\/span> \u25b3DEF"],"correct":"3","level":"1","hint":"","answer":"<p>X&eacute;t&nbsp;tam gi&aacute;c DEF v&agrave; tam gi&aacute;c MNP c&oacute;<\/p><p><span class=\"math-tex\">$\\widehat{D}=\\widehat{N}(=80^0)$<\/span><\/p><p><span class=\"math-tex\">$\\widehat{F}=\\widehat{M}(=30^0)$<\/span><\/p><p>&rArr;&nbsp; &nbsp;<span style=\"color:#16a085;\"><strong>C.<\/strong>&nbsp;\u25b3DFE <span class=\"math-tex\">$\\backsim$<\/span> \u25b3NMP<\/span>&nbsp; (g.g).<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-09-10 04:30:07","option_type":"math","len":0}]}