Trường hợp bằng nhau thứ hai và thứ ba của tam giác.

Home Lớp 7 Toán lớp 7 - Sách kết nối tri thức Bài 14: Trường hợp bằng nhau thứ hai và thứ ba của tam giác.Bài tập trung bình

{"common":{"save":0,"post_id":"5698","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"7179","post_id":"5698","mon_id":"1158532","chapter_id":"1158548","question":"Cho tam giác EGH và tam giác MNP có EG = MN, EH = MP. C\u1ea7n thêm \u0111i\u1ec1u ki\u1ec7n gì \u0111\u1ec3 hai tam giác này b\u1eb1ng nhau theo tr\u01b0\u1eddng h\u1ee3p c\u1ea1nh - góc - c\u1ea1nh?<\/p><svg height=\"150\" width=\"400\"> <g><title><\/title><rect fill=\"#fff\" height=\"152\" id=\"canvas_background\" width=\"402\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><g id=\"svg_4\"> <line fill=\"none\" id=\"svg_1\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"23\" x2=\"169\" y1=\"113.45\" y2=\"113\"><\/line> <line fill=\"none\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" transform=\"rotate(45 122,66.22500610351562) \" x1=\"57\" x2=\"187\" y1=\"66.45\" y2=\"66\"><\/line> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" transform=\"rotate(-60 49.5,67.22500610351562) \" x1=\"-4\" x2=\"103\" y1=\"67.45\" y2=\"67\"><\/line> <\/g> <g id=\"svg_8\"> <line fill=\"none\" id=\"svg_5\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"236\" x2=\"382\" y1=\"112.45\" y2=\"112\"><\/line> <line fill=\"none\" id=\"svg_6\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" transform=\"rotate(45 335,65.22500610351565) \" x1=\"270\" x2=\"400\" y1=\"65.45\" y2=\"65\"><\/line> <line fill=\"none\" id=\"svg_7\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" transform=\"rotate(-60 262.5,66.22500610351562) \" x1=\"209\" x2=\"316\" y1=\"66.45\" y2=\"66\"><\/line> <\/g> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_9\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"55.30625\" xml:space=\"preserve\" y=\"25.45\">E<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_10\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"1.30625\" xml:space=\"preserve\" y=\"115.45\">G<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_11\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"171.30625\" xml:space=\"preserve\" y=\"116.45\">H<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_12\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"259.30625\" xml:space=\"preserve\" y=\"21.45\">M<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_13\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"215.30625\" xml:space=\"preserve\" y=\"115.45\">N<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_14\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"382.30625\" xml:space=\"preserve\" y=\"109.45\">P<\/text> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_15\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"43.30625\" x2=\"55.30625\" y1=\"62.45\" y2=\"70.45\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_16\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"253.30625\" x2=\"269.30625\" y1=\"59.45\" y2=\"70.45\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_17\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"128.30625\" x2=\"109.30625\" y1=\"56.45\" y2=\"65.45\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_18\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"130.30625\" x2=\"111.30625\" y1=\"62.45\" y2=\"71.45\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_19\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"334.30625\" x2=\"316.30625\" y1=\"52.45\" y2=\"63.45\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_20\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"341.30625\" x2=\"323.30625\" y1=\"57.45\" y2=\"68.45\"><\/line> <\/g> <\/svg><\/span><\/p>","options":["A.<\/strong> $\\widehat{E}=\\widehat{M}$<\/span>","B.<\/strong> $\\widehat{G}=\\widehat{N} $<\/span>","C.<\/strong> $\\widehat{E}=\\widehat{P}$<\/span>","D.<\/strong> $\\widehat{H}=\\widehat{M}$<\/span>"],"correct":"1","level":"2","hint":"Khi ch\u1ee9ng minh hai tam giác b\u1eb1ng nhau theo tr\u01b0\u1eddng h\u1ee3p c\u1ea1nh - góc - c\u1ea1nh c\u1eb7p góc \u0111\u01b0\u1ee3c xét ph\u1ea3i xen gi\u1eefa hai c\u1eb7p c\u1ea1nh \u0111\u01b0\u1ee3c xét.<\/p>","answer":"Xét tam giác EGH và tam giác MNP có E<\/span>G = M<\/span>N, E<\/span>H = M<\/span>P. \u0110\u1ec3 hai tam giác này b\u1eb1ng nhau theo tr\u01b0\u1eddng h\u1ee3p c\u1ea1nh - góc - c\u1ea1nh thì c\u1ea7n có thêm \u0111i\u1ec1u ki\u1ec7n là c\u1eb7p góc xen gi\u1eefa b\u1eb1ng nhau, t\u1ee9c là   $\\widehat{E}=\\widehat{M}$<\/span>   (vì góc xen gi\u1eefa EG và EH là góc E, góc xen gi\u1eefa MN và MP là góc M).<\/p><svg height=\"150\" width=\"400\"> <g> <title><\/title> <rect fill=\"#fff\" height=\"152\" id=\"canvas_background\" width=\"402\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_21\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g> <title><\/title> <g id=\"svg_4\"> <line fill=\"none\" id=\"svg_1\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"23\" x2=\"169\" y1=\"113.45\" y2=\"113\"><\/line> <line fill=\"none\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" transform=\"rotate(45 122,66.22500610351562) \" x1=\"57\" x2=\"187\" y1=\"66.45\" y2=\"66\"><\/line> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" transform=\"rotate(-60 49.5,67.22500610351562) \" x1=\"-4\" x2=\"103\" y1=\"67.45\" y2=\"67\"><\/line> <\/g> <g id=\"svg_8\"> <line fill=\"none\" id=\"svg_5\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"236\" x2=\"382\" y1=\"112.45\" y2=\"112\"><\/line> <line fill=\"none\" id=\"svg_6\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" transform=\"rotate(45 335,65.22500610351565) \" x1=\"270\" x2=\"400\" y1=\"65.45\" y2=\"65\"><\/line> <line fill=\"none\" id=\"svg_7\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" transform=\"rotate(-60 262.5,66.22500610351562) \" x1=\"209\" x2=\"316\" y1=\"66.45\" y2=\"66\"><\/line> <\/g> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_9\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"55.30625\" xml:space=\"preserve\" y=\"25.45\">E<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_10\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"1.30625\" xml:space=\"preserve\" y=\"115.45\">G<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_11\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"171.30625\" xml:space=\"preserve\" y=\"116.45\">H<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_12\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"259.30625\" xml:space=\"preserve\" y=\"21.45\">M<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_13\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"215.30625\" xml:space=\"preserve\" y=\"115.45\">N<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_14\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"382.30625\" xml:space=\"preserve\" y=\"109.45\">P<\/text> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_15\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"43.30625\" x2=\"55.30625\" y1=\"62.45\" y2=\"70.45\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_16\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"253.30625\" x2=\"269.30625\" y1=\"59.45\" y2=\"70.45\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_17\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"128.30625\" x2=\"109.30625\" y1=\"56.45\" y2=\"65.45\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_18\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"130.30625\" x2=\"111.30625\" y1=\"62.45\" y2=\"71.45\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_19\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"334.30625\" x2=\"316.30625\" y1=\"52.45\" y2=\"63.45\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_20\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"341.30625\" x2=\"323.30625\" y1=\"57.45\" y2=\"68.45\"><\/line> <path fill=\"#fff\" id=\"svg_22\" stroke=\"#000\" stroke-width=\"1.5\"><\/path> <path fill=\"#fff\" fill-opacity=\"null\" id=\"svg_24\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <path fill=\"#fff\" fill-opacity=\"null\" id=\"svg_25\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <path d=\"m64.30625,38.45c15.27428,16 28.94075,-2 28.69455,-2.45\" fill=\"#fff\" fill-opacity=\"null\" id=\"svg_26\" stroke=\"#ff0000\" stroke-width=\"1.5\"><\/path> <path d=\"m278.30625,37.45c15.27428,16 28.94075,-2 28.69455,-2.45\" fill=\"#fff\" fill-opacity=\"null\" id=\"svg_27\" stroke=\"#ff0000\" stroke-width=\"1.5\"><\/path> <\/g> <\/svg><\/span><\/p>\u0110áp án \u0111úng là    A.<\/strong> $\\widehat{E}=\\widehat{M}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-04-20 08:51:50","option_type":"math","len":0},{"id":"7180","post_id":"5698","mon_id":"1158532","chapter_id":"1158548","question":"Cho tam giác EGH và tam giác MNP có EG = NP, GH = MP. C\u1ea7n thêm \u0111i\u1ec1u ki\u1ec7n gì \u0111\u1ec3 hai tam giác này b\u1eb1ng nhau theo tr\u01b0\u1eddng h\u1ee3p c\u1ea1nh - góc - c\u1ea1nh?<\/p>","options":["A. <\/strong>$\\widehat{E}=\\widehat{M}$<\/span>","B. <\/strong>$\\widehat{G}=\\widehat{N}$<\/span>","C.<\/strong> $\\widehat{H}=\\widehat{P}$<\/span>","D.<\/strong> $\\widehat{G}=\\widehat{P}$<\/span>"],"correct":"4","level":"2","hint":"Khi ch\u1ee9ng minh hai tam giác b\u1eb1ng nhau theo tr\u01b0\u1eddng h\u1ee3p c\u1ea1nh - góc - c\u1ea1nh c\u1eb7p góc \u0111\u01b0\u1ee3c xét ph\u1ea3i xen gi\u1eefa hai c\u1eb7p c\u1ea1nh \u0111\u01b0\u1ee3c xét.<\/p>","answer":"Xét tam giác EGH và tam giác MNP có EG<\/span> = NP<\/span>, G<\/span>H = MP<\/span>. \u0110\u1ec3 hai tam giác này b\u1eb1ng nhau theo tr\u01b0\u1eddng h\u1ee3p c\u1ea1nh - góc - c\u1ea1nh thì c\u1ea7n có thêm \u0111i\u1ec1u ki\u1ec7n là c\u1eb7p góc xen gi\u1eefa b\u1eb1ng nhau, t\u1ee9c là   $\\widehat{G}=\\widehat{P}$<\/span>   (vì góc xen gi\u1eefa EG và GH là góc G, góc xen gi\u1eefa NP và MP là góc P).<\/p><svg height=\"150\" width=\"400\"> <g> <title><\/title> <rect fill=\"#fff\" height=\"152\" id=\"canvas_background\" width=\"402\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_21\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g> <title><\/title> <g id=\"svg_4\"> <line fill=\"none\" id=\"svg_1\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"24\" x2=\"170\" y1=\"113.45\" y2=\"113\"><\/line> <line fill=\"none\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" transform=\"rotate(45 122.99999999999997,66.22500610351562) \" x1=\"58\" x2=\"188\" y1=\"66.45\" y2=\"66\"><\/line> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" transform=\"rotate(-60 50.5,67.22500610351562) \" x1=\"-3\" x2=\"104\" y1=\"67.45\" y2=\"67\"><\/line> <\/g> <g id=\"svg_8\"> <line fill=\"none\" id=\"svg_5\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"236\" x2=\"382\" y1=\"112.45\" y2=\"112\"><\/line> <line fill=\"none\" id=\"svg_6\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" transform=\"rotate(45 335,65.22500610351565) \" x1=\"270\" x2=\"400\" y1=\"65.45\" y2=\"65\"><\/line> <line fill=\"none\" id=\"svg_7\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" transform=\"rotate(-60 262.5,66.22500610351562) \" x1=\"209\" x2=\"316\" y1=\"66.45\" y2=\"66\"><\/line> <\/g> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_9\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"55.30625\" xml:space=\"preserve\" y=\"25.45\">E<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_10\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"7.30625\" xml:space=\"preserve\" y=\"136.45\">G<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_11\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"159.30625\" xml:space=\"preserve\" y=\"137.45\">H<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_12\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"370.30625\" xml:space=\"preserve\" y=\"135.45\">M<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_13\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"266.30625\" xml:space=\"preserve\" y=\"23.45\">N<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_14\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"228.30625\" xml:space=\"preserve\" y=\"135.45\">P<\/text> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_15\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"43.30625\" x2=\"55.30625\" y1=\"62.45\" y2=\"70.45\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_16\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"253.30625\" x2=\"269.30625\" y1=\"59.45\" y2=\"70.45\"><\/line> <path fill=\"#fff\" id=\"svg_22\" stroke=\"#000\" stroke-width=\"1.5\"><\/path> <path fill=\"#fff\" fill-opacity=\"null\" id=\"svg_24\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <path fill=\"#fff\" fill-opacity=\"null\" id=\"svg_25\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\"><\/path> <path d=\"m33.30625,97.45c15.27428,16 28.94075,-2 28.69455,-2.45\" fill=\"#fff\" fill-opacity=\"null\" id=\"svg_26\" stroke=\"#ff0000\" stroke-width=\"1.5\" transform=\"rotate(-127.78268432617188 47.65516662597657,99.53208923339845) \"><\/path> <path d=\"m247.30625,96.45c15.27428,16 28.94075,-2 28.69455,-2.45\" fill=\"#fff\" fill-opacity=\"null\" id=\"svg_27\" stroke=\"#ff0000\" stroke-width=\"1.5\" transform=\"rotate(-128 261.6551513671875,98.53208923339844) \"><\/path> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_17\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"89.30625\" x2=\"89.30625\" y1=\"107.45\" y2=\"121.45\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_18\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"96.30625\" x2=\"96.30625\" y1=\"106.45\" y2=\"120.45\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_19\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"303.30625\" x2=\"303.30625\" y1=\"104.45\" y2=\"119.45\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_20\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"309.30625\" x2=\"309.30625\" y1=\"103.45\" y2=\"118.45\"><\/line> <\/g> <\/svg><\/span><\/p>\u0110áp án \u0111úng là   D.<\/strong> $\\widehat{G}=\\widehat{P}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-04-20 08:57:10","option_type":"math","len":0},{"id":"7182","post_id":"5698","mon_id":"1158532","chapter_id":"1158548","question":"Cho tam giác EGH và tam giác MNP có EG = MN, EH = MP , $\\widehat{G}=40^0,\\widehat{H}=80^0,\\widehat{M}=60^0$<\/span> . K\u1ebft lu\u1eadn nào \u0111úng?<\/p>","options":["A.<\/strong> $\\triangle EGH = \\triangle MNP$<\/span>","B.<\/strong> $\\triangle EGH = \\triangle MPN$<\/span>","C.<\/strong> $\\triangle EGH = \\triangle NMP$<\/span>","D.<\/strong> $\\triangle EGH = \\triangle NPM$<\/span>"],"correct":"1","level":"2","hint":"","answer":"Xét tam giác EGH có  $\\widehat{E}+\\widehat{G}+\\widehat{H}=180^0$<\/span><\/p>⇒ $\\widehat{E}=180^0 - \\widehat{G}-\\widehat{H}$<\/span> = 180º - 40º - 80º = 60º<\/p>Xét tam giác EGH và tam giác MNP có <\/p>EG = MN (gi\u1ea3 thi\u1ebft)<\/p>$\\widehat{E}=\\widehat{M}$<\/span> ( = 60º)<\/p>EH = MP  (gi\u1ea3 thi\u1ebft)<\/p>Suy ra    $\\triangle EGH = \\triangle MNP$<\/span>  (c.g.c)<\/p>\u0110áp án \u0111úng là   A.<\/strong> $\\triangle EGH = \\triangle MNP$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-04-20 09:05:05","option_type":"math","len":0}]}