Chú ý: Để đảm bảo quyền lợi và bảo vệ tài khoản của mình
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HomeLớp 2Toán lớp 2 - Sách Kết nối tri thứcBài 25: Điểm, đoạn thẳng, đường thằng, đường cong, ba điểm thẳng hàngBài tập nâng cao
{"common":{"save":0,"post_id":"4235","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2074","post_id":"4235","mon_id":"11445","chapter_id":"11475","question":"<p>Hình v\u1ebd sau có bao nhiêu \u0111o\u1ea1n th\u1eb3ng? <\/p><p><span class=\"svgedit\"><svg height=\"55\" width=\"319\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g><title><\/title><rect fill=\"#fff\" height=\"57\" id=\"canvas_background\" width=\"321\" 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><image height=\"44\" id=\"svg_1\" width=\"314\" x=\"1\" xlink:href=\"data:image\/png;base64,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\" y=\"12\"><\/image> <\/g> <\/svg><\/span><\/p>","options":["A\/ 3 \u0111o\u1ea1n th\u1eb3ng","B\/ 4 \u0111o\u1ea1n th\u1eb3ng","C\/ 5 \u0111o\u1ea1n th\u1eb3ng","D\/ 6 \u0111o\u1ea1n th\u1eb3ng"],"correct":"4","level":"3","hint":"<p>Vì 4 \u0111i\u1ec3m A, B, C, D \u0111\u1ec1u th\u1eb3ng hàng nên ngoài \u0111\u1ebfm các \u0111o\u1ea1n th\u1eb3ng \u0111\u01a1n, con hãy \u0111\u1ebfm c\u1ea3 các \u0111o\u1ea1n th\u1eb3ng g\u1ed9p b\u1edfi nh\u1eefng \u0111o\u1ea1n th\u1eb3ng \u0111\u01a1n nhé!<\/p>","answer":"<p><strong>Cách 1:<\/strong> \u0110\u1ebfm \u0111o\u1ea1n th\u1eb3ng \u0111\u01a1n và \u0111o\u1ea1n th\u1eb3ng g\u1ed9p.<\/p><p>- Có 3 \u0111o\u1ea1n th\u1eb3ng \u0111\u01a1n là AB; BC; CD<\/p><p>- Có 3 \u0111o\u1ea1n th\u1eb3ng g\u1ed9p là:<\/p><p>+ G\u1ed9p 2 \u0111o\u1ea1n th\u1eb3ng AB v\u1edbi BC \u0111\u01b0\u1ee3c 1 \u0111o\u1ea1n th\u1eb3ng AC<\/p><p>+ G\u1ed9p 2 \u0111o\u1ea1n th\u1eb3ng BC v\u1edbi CD \u0111\u01b0\u1ee3c 1 \u0111o\u1ea1n th\u1eb3ng BD<\/p><p>+ G\u1ed9p 3 \u0111o\u1ea1n th\u1eb3ng là AB, BC, CD \u0111\u01b0\u1ee3c 1 \u0111o\u1ea1n th\u1eb3ng AD<\/p><p>C\u1ed9ng t\u1ea5t c\u1ea3 các \u0111o\u1ea1n th\u1eb3ng \u1edf trên \u0111\u01b0\u1ee3c 3 + 1 + 1 + 1 = 6 (\u0111o\u1ea1n th\u1eb3ng)<\/p><p>\u0110áp án \u0111úng là: <span style=\"color:#16a085;\"><strong>D\/ 6 \u0111o\u1ea1n th\u1eb3ng<\/strong><\/span><\/p><p><strong>Cách 2<\/strong>: Tính s\u1ed1 \u0111o\u1ea1n th\u1eb3ng theo quy lu\u1eadt:<\/p><p>- N\u1ebfu có 2 \u0111i\u1ec3m th\u1eb3ng hàng t\u1ea1o thành 1 \u0111o\u1ea1n th\u1eb3ng \u0111\u01a1n.<\/p><p>- N\u1ebfu có 3 \u0111i\u1ec3m th\u1eb3ng hàng t\u1ea1o thành 2 \u0111o\u1ea1n th\u1eb3ng \u0111\u01a1n thì hình \u0111ó có t\u1ea5t c\u1ea3 là 1 + 2 = 3 (\u0111o\u1ea1n th\u1eb3ng)<\/p><p>- N\u1ebfu có 4 \u0111i\u1ec3m th\u1eb3ng hàng t\u1ea1o thành 3 \u0111o\u1ea1n th\u1eb3ng \u0111\u01a1n thì hình \u0111ó có t\u1ea5t c\u1ea3 là 1 + 2 + 3 = 6 (\u0111o\u1ea1n th\u1eb3ng).<\/p><p>- T\u01b0\u01a1ng t\u1ef1, n\u1ebfu có 5 \u0111i\u1ec3m th\u1eb3ng hàng t\u1ea1o ra 4 \u0111o\u1ea1n th\u1eb3ng \u0111\u01a1n, thì hình \u0111ó có t\u1ea5t c\u1ea3 là 1 + 2 + 3 + 4 = 10 (\u0111o\u1ea1n th\u1eb3ng)<\/p><p>Vì hình trên có 4 \u0111i\u1ec3m th\u1eb3ng hàng thì s\u1ebd t\u1ea1o thành t\u1ea5t c\u1ea3 là <span style=\"color:#16a085;\"><strong>6 \u0111o\u1ea1n th\u1eb3ng<\/strong><\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"125","test":"1","date":"2021-07-29 04:43:02","option_type":"txt","len":1},{"id":"2076","post_id":"4235","mon_id":"11445","chapter_id":"11475","question":"<p>Hình v\u1ebd sau có bao nhiêu \u0111o\u1ea1n th\u1eb3ng? <\/p><p><span class=\"svgedit\"><svg height=\"61\" width=\"382\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g><title><\/title><rect fill=\"#fff\" height=\"63\" id=\"canvas_background\" width=\"384\" 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><image height=\"44\" id=\"svg_1\" stroke=\"null\" width=\"385.00001\" x=\"-2\" xlink:href=\"data:image\/png;base64,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\" y=\"14\"><\/image> <\/g> <\/svg><\/span><\/p>","options":["<b>10<\/b>","<b>8<\/b>","<b>6<\/b>","<b>9<\/b>"],"correct":"1","level":"3","hint":"<p>Vì 5 \u0111i\u1ec3m A, B, C, D, E th\u1eb3ng hàng nên ngoài \u0111\u1ebfm các \u0111o\u1ea1n th\u1eb3ng \u0111\u01a1n, con hãy \u0111\u1ebfm c\u1ea3 các \u0111o\u1ea1n th\u1eb3ng g\u1ed9p b\u1edfi nh\u1eefng \u0111o\u1ea1n th\u1eb3ng \u0111\u01a1n nhé!<\/p>","answer":"<p>Tính s\u1ed1 \u0111o\u1ea1n th\u1eb3ng theo quy lu\u1eadt:<\/p><p>- N\u1ebfu có 2 \u0111i\u1ec3m th\u1eb3ng hàng t\u1ea1o thành 1 \u0111o\u1ea1n th\u1eb3ng \u0111\u01a1n.<\/p><p>- N\u1ebfu có 3 \u0111i\u1ec3m th\u1eb3ng hàng t\u1ea1o thành 2 \u0111o\u1ea1n th\u1eb3ng \u0111\u01a1n thì hình \u0111ó có t\u1ea5t c\u1ea3 là 1 + 2 = 3 (\u0111o\u1ea1n th\u1eb3ng)<\/p><p>- N\u1ebfu có 4 \u0111i\u1ec3m th\u1eb3ng hàng t\u1ea1o thành 3 \u0111o\u1ea1n th\u1eb3ng \u0111\u01a1n thì hình \u0111ó có t\u1ea5t c\u1ea3 là 1 + 2 + 3 = 6 (\u0111o\u1ea1n th\u1eb3ng).<\/p><p>- T\u01b0\u01a1ng t\u1ef1, n\u1ebfu có 5 \u0111i\u1ec3m th\u1eb3ng hàng t\u1ea1o ra 4 \u0111o\u1ea1n th\u1eb3ng \u0111\u01a1n, thì hình \u0111ó có t\u1ea5t c\u1ea3 là 1 + 2 + 3 + 4 = 10 (\u0111o\u1ea1n th\u1eb3ng)<\/p><p>Vì hình trên có 5 \u0111i\u1ec3m th\u1eb3ng hàng thì s\u1ebd t\u1ea1o thành t\u1ea5t c\u1ea3 là <strong>10 \u0111o\u1ea1n th\u1eb3ng<\/strong>.<\/p><p>V\u1eady \u0111áp án \u0111úng là <strong><span style=\"color:#3498db;\">10<\/span><\/strong><\/p>","type":"choose","extra_type":"star","time":"0","user_id":"125","test":"1","date":"2021-07-29 04:55:05","option_type":"txt","len":0},{"id":"2087","post_id":"4235","mon_id":"11445","chapter_id":"11475","question":"<p><span style=\"color:#8e44ad;\">Hình v\u1ebd sau có bao nhiêu hình tam giác? Có bao nhiêu \u0111o\u1ea1n th\u1eb3ng? <\/span><\/p><p><span class=\"svgedit\"><svg height=\"169\" width=\"250\"> <g><title><\/title><rect fill=\"#fff\" height=\"171\" id=\"canvas_background\" width=\"252\" 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><line fill=\"none\" id=\"svg_1\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"3\" x1=\"100.34927\" x2=\"9.25841\" y1=\"8.40281\" y2=\"167.2736\"><\/line> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"3\" x1=\"98.68438\" x2=\"242.22412\" y1=\"8.80438\" y2=\"165.26271\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_4\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"3\" x1=\"8.7328\" x2=\"242.70259\" y1=\"166.21964\" y2=\"165.26271\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_5\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"3\" x1=\"100.11978\" x2=\"80.98114\" y1=\"10.23978\" y2=\"166.21964\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_6\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"3\" x1=\"80.98114\" x2=\"177.15277\" y1=\"164.78424\" y2=\"93.9713\"><\/line> <\/g> <\/svg><\/span><\/p>","options":["<strong>A\/<\/strong> 5 hình tam giác; 7 \u0111o\u1ea1n th\u1eb3ng","<strong>B\/<\/strong> 4 hình tam giác; 8 \u0111o\u1ea1n th\u1eb3ng","<strong>C\/<\/strong> 5 hình tam giác; 9 \u0111o\u1ea1n th\u1eb3ng","<strong>D\/ <\/strong>6 hình tam giác; 10 \u0111o\u1ea1n th\u1eb3ng"],"correct":"3","level":"3","hint":"<p>\u0110\u1ec3 \u0111\u1ebfm s\u1ed1 hình tam giác, con nên \u0111ánh s\u1ed1 cho các hình tam giác \u0111\u01a1n nhé.<\/p>","answer":"<p>B\u01b0\u1edbc 1: \u0110ánh s\u1ed1 các hình tam giác \u0111\u01a1n và \u0111\u1ebfm:<\/p><p><span class=\"svgedit\"><svg height=\"154\" width=\"231\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g> <title><\/title> <rect fill=\"#fff\" height=\"156\" id=\"canvas_background\" width=\"233\" 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> <image height=\"143\" id=\"svg_1\" stroke=\"null\" width=\"236.00001\" x=\"-2.5\" 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\" y=\"7\"><\/image> <\/g> <\/svg><\/span><\/p><p>- Hình \u0111\u01a1n g\u1ed3m <strong>3<\/strong> hình tam giác: (1), (2), (3)<\/p><p>- Hình g\u1ed9p g\u1ed3m:<\/p><p>+ G\u1ed9p hình (1) v\u1edbi hình (2) nh\u01b0ng không \u0111\u01b0\u1ee3c hình tam giác (lo\u1ea1i)<\/p><p>+ G\u1ed9p hình (2) v\u1edbi hình (3) \u0111\u01b0\u1ee3c <strong>1<\/strong> hình tam giác<\/p><p>+ G\u1ed9p hình (1), hình (2) v\u1edbi hình (3) \u0111\u01b0\u1ee3c <strong>1<\/strong> tam giác.<\/p><p>C\u1ed9ng s\u1ed1 hình tam giác trên \u0111\u01b0\u1ee3c 3 + 1 + 1 =<strong> 5<\/strong> (hình tam giác)<\/p><p>B\u01b0\u1edbc 2: \u0110\u1ebfm s\u1ed1 \u0111o\u1ea1n th\u1eb3ng: có t\u1ea5t c\u1ea3 <strong>9 <\/strong>\u0111o\u1ea1n th\u1eb3ng.<\/p><p>V\u1eady \u0111áp án \u0111úng là<span style=\"color:#16a085;\">: <strong>C\/ 5 hình tam giác; 9 \u0111o\u1ea1n th\u1eb3ng<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"125","test":"1","date":"2021-07-29 05:53:23","option_type":"txt","len":2}]}