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HomeLớp 11Toán lớp 11 - Sách kết nối tri thứcBài 10. Đường thẳng và mặt phẳng trong không gian.Bài tập trung bình
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ABCD c&oacute; 4 m\u1eb7t b&ecirc;n.","<strong>B.<\/strong> Giao tuy\u1ebfn c\u1ee7a hai m\u1eb7t ph\u1eb3ng (SAC) v&agrave; (SBD) l&agrave; SO v\u1edbi O l&agrave; giao \u0111i\u1ec3m c\u1ee7a AC v&agrave; BD.","<strong>C.<\/strong> Giao tuy\u1ebfn c\u1ee7a hai m\u1eb7t ph\u1eb3ng (SAD) v&agrave; (SBC) l&agrave; SI v\u1edbi I l&agrave; giao \u0111i\u1ec3m c\u1ee7a AD v&agrave; BC.","<strong>D.<\/strong> Giao tuy\u1ebfn c\u1ee7a hai m\u1eb7t ph\u1eb3ng (SAB) l&agrave; (SAD) l&agrave; \u0111\u01b0\u1eddng trung b&igrave;nh c\u1ee7a h&igrave;nh thang ABCD."],"correct":"4","level":"2","hint":"","answer":"<p><span class=\"svgedit\"><svg height=\"250\" width=\"250\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g> &lt;title&gt;&lt;\/title&gt; <rect fill=\"#fff\" height=\"252\" 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)\" 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hXW211SqJ9Pq6rUyusHsonOhFMMe5fRhSWGOhakt6a5gCgWUx8AZNuWVnuvvuu9Mr5SEoQ7jRSqtaEVpR9laKD8ywuvbaa9Nn7SNdpyVxM\/nvQUeBjKONeEVsJfwiA23QxAh2JW5xFSiAaHUMjQb6iy++eNM5a4jMU7V1ihSW2VyjJMxwpna2biVoOcwMtEFLZ2iax7CrQBdLjflawVmWQdN+N4uAmKb9DLJTTj\/99KYqwoYJ7zkxisDgqKe3BtagyStFnzvJ3zZC0IUrr9CiFRTyc3tbOc9Lx8w555zhczvFQiLaP4wprEZILxLoWOCrOH4NCgNp0P54piFW1UAAvjZXrlU0x9MEoZVuIlJXvh93vQwIYcy5HkUYs+PL0UcfPZLprYE06MmTJyeTJk1Kn1WDr19rtvNYGBHLVe8ldnrehU4towhhEfdbq+ZW2iQPAwNn0NJBCvurLLOzU3Jb22mTw6Bb7fltJ7F43HbbbemVzhEBHqtJ4bAjc9Cv00aqYqAMmqEZEKc2uUrkOUWL23HZzJhWttkqaq332GOP9Fnn3HTTTeEs3+qI3GFD+2CpLY9RqLUeKIPecccdQ5eOqnEGVb7XDvpQGwXTKpocrLfeeumzchADiLXFMyEOMoC\/k57sg8DAGDS3SZFE1TWyUkfaArWb12TQzfQdK+JzJkyYUErqKkOvslFLYTXCedpxyPm6zAKefmIgDJoqiPvIjawaumqTJdupT5YPpxLTHbRVVEyZ3FhmXy2Ln\/dt1FJYjXCMorMn6ZX6HDb63qDd4FxRLYW6wSGHHNJ2jy99zOi4+6nntN\/HFI\/IrPgbyVl7f4ZJjNL3Bs0V1Zi9TFe0Eb5XK8UYecxwdixop26XkIXM9JFHHkmvlIOGhe0IZEYBhkx2q7tMVQKlbtPXBi2fSg3WrSHi2gFp1duKbDPP448\/Htr3NjvEPY8ik5e85CVBmFI2Jly22yp4FBAv0RnlpJNOSq8MLn1r0FZPdcX6NXcLRR4bbLBB+qx1VGc5f7dT7eTMvvDCCzddR90KWQrr2WefTa9EihhcIHfvMci11n1r0AcddFDTfbnKwgLSSR9vjf114GzneJA13W91XnSziHbrXxZpjBprAwkNNxxE+tKgzT5iGN2ULmr5S4PdyRlWmshO2K6GmPBBtLsKNIHQFCAyNuIO0lu6o5Slr+8WfWfQlE1WyEsuuSS90h2UMHbaOVP3zbGGvPcK7rYIfKcTOEcFHpNaa2frb3zjG+nV\/qfvDJoarOrCi1qop+Xmd4IboBODli\/eZZddKovoS9FU5dIPK+Iia665ZijNHIROMH1l0MT0ZkK1G2VuF6qhdosx8jCWTgxGCeX48eMru3GkrrRUiims1hCg1UxDjEWcpJ\/pG4POCi9uvvnm9Er3uOKKK8L0iWYG0TXC7txJVF7abK655gq7QlVsu+22bWnNIzPHDgku0kb0a6113xj0Zpttluy1117ps+4iVWFWcacQKDhHt4spkvPMM0+lSjMLpsCdpgqR1vG+CZb5W\/djeqsvDFp0mAa6F3lS6i7fW8fMTvB1RMkNqmsXWnAFBFUPnlOFpW470j5SgLIG\/VZr3XODliKwY\/RK\/3z77bcHMUindcMCWVJt\/X7GghSWTEKnR4xRR5pR038TS\/qlequnBu2GEmjopSxRU4EyRsgIZFkYOj3\/UquV2eigFhYvwcdbb701vRJpF2dpcRPprbLHMLVDTw3alEYpAVVKvYCLq+i9jA4o9Nt03PTcnbD99tt3ZZKkNMzGG2+cPot0iroDm5PUZy\/TWz0z6AceeKDrarAinRZj5FFhpdLKWboT9NVeaKGFKr8pHn300XDmjyms8pDeOuyww8KkzDvvvDO92l2aMmiusUFhnd6sGW5WPbvaaQRQJlz9VgfR1UODP7GATr2NK6+8MuTEu9ELTAqrV5mFYUZ1oDbTxxxzTGlxCm2hFZCIrGcPjT+K91tTBq3HltI+yfUy2GeffTqqaioL555OotJ5nKMUV3Q6xUNwTU6+qmkgeZyhnaVjCqt8vKfshgLxoYceSq+2jz7jPDfDCI1ookqUal1\/\/fVnObuPadACNFxJCigjXjrt6SWq7MbvthqsSFaMoQ65DIgN9BMrA65bt4QLhBKnnXZa+ixSNtSPK6+8cnLuuee2vUj7PKIrHVaKiEEttthi4Z5BQ4PWzWGOOeYIqRirTKcF+FyGiRMnVt6Gtxm4+4IYZaFFUhkGbaFzrncDdAMpLF1a+lX5NAw88cQTyXbbbRdmmLfTSljAddy4ceGIJL1L8083QeBiSki+s2tdg9YZ0bylbM6x6hPG2E7P6QzpoX4Z0aLWuswOFd4XR4lOEV\/Q\/bNbqTwiFsHJbjRgHHUEPIlRWh0dLJX5ile8IizyesZ7ELbYtfUbzxfz1DRoxkyCSJusg4ab69hjjw2dEl13GG8FIX3h\/EUWWSREVwXXqMI8uPDF6iIfdz17Tf61xcCcz631Wo9iB03GIthkxVxyySWD+y\/YoFtI8bVeV+trFlVc3CG7Gymgc7QgRb3Xel3+a2UPP3\/mMmGVVVYJ43T8brVeXwyEeF7vPSgGZXyf\/Gt9fMqUKTUXaj9\/\/mtlj1oBO+9tM6\/1Pnu\/a722GNn32lqv8\/NXcc+4Vnxv3R+1XtvKPeO1mbstrWmnVlV46qmnjtl51PcwhIEXVYRKzc6d72E3i0H7pr4Rl++xxx4Lz73JHn5R0TtfoNXoNJ22z+OyO9hTKXFPt9hii9DRU3FEHiuQhnmKzPMPry3WpuowUXytm9NiVHRv3LiCFM4088033wuv9bOI4mcwvEyvm\/+6AhDyt3ncHN6zV73qVWHF3HTTTV947VFHHZW+aiaOLYKB+a\/p4fdyBs8Q+BBnkCcuvtbX1QAiDxfM9eJr\/fz3339\/+qqZWKB9v+w1vof375WvfOVsN5edofh1\/fyGEBSNRICG15N\/re8vBpO\/8Z9++unwd\/e+51\/rc\/fdd9\/0VTOxcXg\/i6\/181566aXpq2biKJj\/vbKHa8Vjos+td38Vi4METYtf18\/jd\/C7ZPgd\/a7Fe8b9xivNFgWbiGAZe\/BgqJmx18Lfz+t8be+5YJuvxfWmofD3y28Gsxi06Kp63HpdOxi1NEerfa+sUHZ96RjG7RDvX8bplyye3+waVsZaj1ZeW3yjsptw8803Tw444IDw\/3qvZaj5r5U9ijcyvMGaGUo5od5r\/dHzXyv\/yO8Mfha\/Z63XeRTfg0avLe4ivk\/xNXDGc6Pl8fMXX+tR3B3R7Gv9brVe51F8vxq9tuh5tPJ+VXV\/eW+93\/mfxeefddZZYSEU1HKcsvibO2YzGkuHYYGxo\/NwRbot9jxmrbL0kM\/fN2gYFCsTwR4Gzf228iq2t1MSd3QTxie6baUsC66pHLTfrQzcKMWbpWqyAQMxhdUZvLDifGr3mhThgQceGFSA7bR5bpauGTS4HvldwOqSv3H94tOnT0+fVQP3lPEVz2ud8OSTT4aUXlm9nUUwCRNqnVWrxM3WSfnnKMID0dZJQFTE+bWvfW0ox817RhZJAWFHM5meKumqQTNWfa3qNV5zXnF25JqI4pVpdBlScWUUY+S59957g0GX1VBOCaVGB93qR57BNbSQFN30SG38nZSiUj3arJzVLe759+\/6668P72m30pBdNWjI\/Yru1YNLzJgZtXQKdVrxvNQuzjSUUWU3sxegUFNd1s8pQLfgggvOFiysmiyFpTNH5EUEVwVqnV\/FfDLszs7AteIqvM+pU6cG4UeVHWiKdN2g7cLOzsXDfC3uuOOO0GerrPOkghDBq7JVanL1PI9iQKUTuL+q0bqN4MuoV2H5OzqaCT6JUotEC0xJSzZzDLJzi6Jzw\/MLQDfoukFnu0A7Qga7t+i4nLhB3q1SZjFGHlH\/sksepSKaWfTKpmxJ7CDiPjPgj3comNWKUWo\/bcPqlRqy6wYNJWZWvlaxU4sgmg5pR7RqqnJq9sa30krGl40FRiCkTMQP3Fi9gG5frGGYsQvz2LJe6p2ecf29pHTlrImnekVPDJpaptNdQOrrxBNPDIqvZvppZy1sqcTKZrfddgsSvDIhsqAW6wWOOksttdRQprBsADvttFOI5ai223vvvcNumheJtIo0lAg3IVGtHH036YlBQ1SwjFY7RCv5ncz5mLqmeO6mbvMHrAIqp7KHzGmcOP\/88\/dslxbMUaY3qIg0Oz4UhRvy7dOmTQu97Do90rjHTFzhYvdLO6eeGbScMyFDWameDJ0i9Nhea621QrQ8MwhBiry8skzI\/aR8yuSWW24JgvxezS0WvKTdLzPQVzUa9QlmiS7LkpAYV1XkIp8s\/SkmU9U8snbomUFDqxZR7LIRiVRS5o9K2K5Pl6HnVbU7WmmllUprlJDBBfT+lFEc3w6Cl+rgB2WukwXQTklnbZAAbYDfoQrs8r6X6qmyMjBl0VODZgQCVVUKGUhL7dZ27Sq+j2CIYpaxqmYGEbEJxRH9BCN1pGJM+Z3R9apVWO4fbYV4LlUrGtulpwbNRRJ8EYSpEoXhWTEGRKVVEpUx+YA3QKziTFY2goZVBPGaReBR8FJetVc45yoWuuCCC0IwizHxvASzuunqqj5UYSWd1e3cciv01KDhvNPJxMaxcEa3g+ZllJQ7UjM03UonBTRqqX2agSFr31tF90xeRRkjejpBOq6bKSxn9rwba9EVo3Bs4tHJkHTbzb3mmmtCqaLqqH6n5watQqnK8600hbNgrXSC3U+gjGxT\/rCdYghBOEKZKtIVuls4R\/cStddSg1WmsHxtje6k6vy+RdFRrwJzvIP9998\/HNl66aW0Qs8NGoQiSsuqQHXXzjvvnD6rDUO20+bP2HaGZoIqbniBtyrO55MnTw5Hkl4oxvJIYZXZrilDQJTASPGCZgA6WQpmVVGU0yr6eElHcu3bWeh7RV8YtHJBKayy5wMpxmgnUmu3pWfm8spf57uZFKEwskNX4QZKuzn\/9\/rM5neUAupkpxSwKoo3brjhhqCDdyzqp2ixhUYbqLKLeLpBXxg0RLvLLjETidRUoR2DoKV2w8kzMlgBmVqBL+ogHVCGGZ6KstZWZjdZTEkrddmwODqDNqqy6wd4BrvuumtIfXU60qhX9I1BE2aUXeAgH1lG5ZAIpxROLeWUVjIin1VgRxRpZhy9Rmag2eAlDYAdXTTauVgcg5fTbznbPGoE9CjvB\/lmJ\/SNQQuMSP+UmcKy61cVmTScXZGJG1e\/tCogYx0\/fvxsjet6gZpgx6K80MVCQ8dM\/pg\/Z3Kv7XCDoDKzyCiLdK8QjAw6fWPQUK1S1m4nqCF6Xnbtc4YbnHum4RvVkNRGvvtiGZCtLrzwwn2TLhFclMaSPvKvKLwIsNRaP+dm62HhUVPgodPIMNBXBk3VpSKqjBSWdJT2MFWjm6MyTukWgRTnxjJx9txvv\/3SZ73FImkB0xn26quvDpmAQdiFa8Hr8ffiXQwTfWXQICIo9rNuB6WHyiurxFmLaOWyyy4Lz7UiyssPuaSd6okp3Lo5pZOXwY1W1CD+UNSSW7gGuZGgFKC4B++i2LN8GOg7g9bPSlRZWWS7KJuz01c9+5ibKU9cT\/YpkESNRndcletfFiL66rrd6HLC4gMKHorHCEcLeeNB3JnFPWQk5PcH8YjQDH1n0FZQXRSLkxFaQcS8zEF09ZA3p6Kqd0TIUl8KHHRYER9o1SUXLFT4Uaa4hGdRjJzTSmufw41uFI3mcVDWDVqOVhMD91XmTQ0rfWfQ4GJyvdtFwKYbGmgutu6czRRQSH2ZUEkV14obzmNxbu1kh6diE\/SRThLIU+DQSU7Y1IYq9fdlYuESgxC8q9pj6wf60qDdvHa+4gSCZqA6IiZhbFWjSQM1WbtwW88555xQOFJvV9TEXaMDAal2sDM592qRI3jn+2ma0G4xCjRo9B63+zN1C0U45Jv0CL2Wz3aLvjRoaIFqYFyr6GXNyLpxxiOY6MSgub6EFxYvogZKueLZTpDNxE8N2xshxSWP6mvkb17HAXrzsvXRBtY5i\/Yrjl0yBNk45FGhbw3a6iqw1Wq7XiKPqoQeRfQRc9N0CmOU25Vms\/NpH5vt2AQbDKc4A8xiIEp72mmnhUCPyZd6pqkO6kYxwYwZM0LwspHOvRf43aXVROjbGa4+6PStQYN0sJXme25ymuNuTX5wJjavqEwcM0yxLLrgPI78Nc0PxBmIcbjVJKKNgllVwJWvqk9bO1AZCoaS6FZR\/TYI9LVBm3TPQBlqM2QTFLtV7mY3LNugi5xxxhlhbpaJH8Xm7b2+aUW6q24h1SwCddJpxdnZo0ZfG7S0z8SJE5tONYhsl93wvhEip8UB8J3COHgYFgviGFpxUWn5bEcQk0OcC5td5KpEtN7fh2qsV8gt6zpDvtlP3Td7RV8bNLjcWvA2AylfFZMx6sGgpYI6wRk038qYQVNpEaWI1FvUuNse3GoD05xdzzzzzPQzeguXu1eNBOX4LXhlt1AeZPreoOVPudFjDYb3cTLMbq7SglitGrS8aL5OWAtgjd9bwdfIR7I10etGmq4WFhlFMN38\/n73Qw45JJTblq2dH3T63qChucBYkWs7Whm1z80ivbTIIou0NHTPOc+OIpgkXaU5YRl1wo4kVFCi3KLlVfb\/qgWxishyNxAM1P9Na6BeTRXpZwbCoK3CpJONUiTc8qqLMfJkLYhrdbbgHrvx5KnzxkrzbZBZszlyO5FHMwYvEChoRkjhvZLDL3sqST2kz+zSNPRVQg6sVFUWIFKbgTBoSGHZ4WohMKJ\/NNezW9A8izz73iD\/JP6QRpI6UeSg8WGrEWBGaK6VAB+3ksrJ7qfAo9mCAgbm87pZECKAV+\/v0ylEMXLxFu2qusMOCwNj0BrmWZ1r7W60390oxshj97WICFpp8UrpReAhSERa2U4UWnWTDqJ6lVsosp2ZC+04IaLcjjstGs0gCFZoyqsgSzF2Wi5ahIDF4qjksR8i+\/3OwBh0lsKqlSKhUXazVoldIpvqz511bnUeBsPrVFrJdZ9vvvnqTuS86qqrknHjxoXyxVaxCKpxltrhjotKS30VK646wdfy9\/FzloH3VLCQEq8fWjANCgNj0GC0unDmyUoY9XMuGwUMOlqY\/Uy0IBijTljBhFJDEeqyoDpjsAYP1MJMJR\/vdIYWN5z7rr3xdtttl14tB3219fDuFPp1gVBeSb\/XkfcbA2XQtLmCL3TeGYox6Jiff\/759Er7cOnybp1Ak7Po5ZdfPludsPMtAy8L\/bft0LVcaj8Td1beu9mA2lhwjfMpPsG3VnXzRXy+1GEniysviJ5AeWczwcDIrAyUQcNuma\/yUV8sENUOAlZ2ALutbh0UWc3mhJ1zpWvKQvprjjnmCDrkbHFivFoATZo0KeRcqzr\/wvugU4k6Z4MJ2u0YI73YjhzW30Lq0d+gCm9rVBg4g\/bHtluJ+NpVnAnbKZFjuPLBXGmLgvxtK3XCzqMWgTJhvM7QHhRheoGTgPJCuhEQEqeQEnKskdfWGKDVzIGzOolqKyks8QPyTUeAmFvujIEzaIhok\/sxbhrnRgEpO42IdLHnMtfOWbjdYJaodlWTIASYuMRlBq1aReTegkVe2SrSS8cdd1z6rDEKPAS+uinZHWYG0qC5yHZX0eaie2eHtdOpUrLTEH9w48pu12pRcbYeJSyAAmrFGVVFjMzhRTVaLHlXji3+jjyjSDkMpEHbuQTCRH2L0ku53EUXXTQIUUxMFEArK5CU4etJ0YyaYonKTbzCeV78wHtdKxhpUW2UwqK7p2hj0DG3XC4DadAiwZlBE3PoE02lZWc2oI57XTRiN1kWxbY7+LhHq0oukKAutthiQfQwikgVanXEKEXeZQCKGC9Ta1ZZNtmxnXx6ZGwG0qBpouVRX\/ayl4WdQL5yiy22CEGVbbbZJkRa8+kf6Q87iw4fXquIQStaZYiiugw8Q2CI7FIe1C4k+CWyLmiTdU+RJ3V2FwDSdE8pI7mmxUQeWfO84k3O\/bQzWXS4mL6P3c33Li4qfl7Xske\/YkF01s7vsll0nBSWPsB7AilAs7qJWuz0kWoYSIPO0Myg2UZ1DEpk3I1FD0yg4VEUcrg5XdfO5s477ww7iogz6WHW2ogbr9JKUE5BiACQf\/0sUkwWFyKLPAyZos3i4Oe2sEgTyWUL2uWx+1kwyEDJXc2Uskj5N5+Dhw4dAoQ+x88quORfZZ3F1JM8scWEESoe8T5obUtmWlw4Mg\/Go5V8sMi8hZCenAZdM0Hfz04uLRVzy9Uy0AbNENRKdzvVYUA9z8DN3g5uaj8z11UxRjFVJidsQWGsHtoFe\/h9ixVnjhrEL5RkSgrFDjwEBIu14UceeWQ4olhURKLtoIQgPJa8Btuix9sxJ9miI\/hod\/Wvr5H\/vf0ee+65Z7LDDjuEACUvZvvtt09e85rXhMfcc88d+ooP8vicQaLrBi1CKu9oZ5DjJJboROXlnGbqQzexU2c67kEivzty9R1LGKSdPP8x\/7fYWDz8a4cVfKSp5r3kd3PGr1kDSSz5Kq2787P8uSEECyywQFh0o1ikO3TVoLm80kjrr79+SCNpQWtnIXt0EzQr6sjj\/KqJfDfPmqq7ytRxDxs6l1poxRcYvHhBpDt01aDtbCLTxabxVEUTJkxoq592NinDebdbmAhpEYrMil3f5FALrIBhpPt01aAFdbhgtQoQBIwMN2+2iD8PAxOI6hbcyXpljqOKwJq\/gWxCO3\/DSDl0zaD9kUWGN9xww\/TKi3CXpZHaLb0TQVaFlXUPqRpHhnYLQoYRNeq03xR8tZA5kE0QTPRwDm9XchtpTNcMWgEFd7tWAIuiS+lgJ03S7Q7dmDgJLmVsHTvTUHkrFuJaRRwi5zq4SNGJjhOT6GwigKaoRqotUi5dM2hpDQZt0qLIqdpmXS\/lKlU8SdN0gnM5sYkgTNVo39vL5vL9APFMNoonLyzJIM+lJJNLrzVjSiWXApe4U5dLVwxa3lI6Qy6TuMBD8MQup+qpneh2LeycSg2rxIJhNE0xsDdKKDVVIdWoEkuE2wKutroeUWRSPl0NilUN8YJVv0qINYgxarXvHXbspgKbBCdjdTfhZiuSiTtwdxkqg+baSWFx66vCJA8KK1rlUULppLMyT6sZj4oWvl7WgmfmCOboFSmXoTJocOsVVFSFSi6SxlFqXiew1Wqcw4gcVVUkpBZYwxJIVwXRXFczHSmfoTNoRQFa4FSVwnJ2lqIZBVSV0QcoJmlnZhiFmMyF87SItgyHv09ZMZPI7AydQUN0laS0CuwsdqthR5rR76lDSbtFKJHuM5QGLddJa52vcy4LBQjSVsOKQhm\/o+Ci3TQyWAylQTNkHU0MbyubKVOmDK1KTFMG5ZJqmKN8czAZSoOGkj7Ch7Jh0B7Dhu6bdmUTHiODy9AatChrp1McaqHzRrckpt2APHOfffYJTRHUqEcGm6E1aEhf6aZRJloCD4vsMxuezqBj5Hk4GGqDVpNrl66lJW4XOdRBl32SXJJvaj2k+ikyPAy1QUPnjGLDvnbRPmn8+PFBNTWoaDlExSX4NWpqt1Fg6A1as\/eyWhTZ6bVQGlSVmDQU+aZSxlgYMZwMvUErDjCWpQypoUAbHXc7qqlewnh14zS+R7+vyPAy9AYNvaK1r+0UPdF0Xel22+BOIN\/0uxtAEIshhp+RMGiCCfpurYo6QXR7kFRias016o\/D00eHkTBoKDLYd99902ftceGFFyZrrLFG+qx\/ob3mlcgtZ6NoIqPByBi0s6NaaW1\/24XkU+F+P6MlsuIUXUmLo3Aiw8\/IGDSX0+46bdq09ErrMBL1vP1KNjy925NEIv3DyBg03OidtCiSv+1HgybftNjQrhtAFxldRsqguaDmLBWnPTaL3U\/3jn5Cv2u5ZfryWt03I6PFSBk0TGhsd8qGAXXZSNle4wihE4ifiasdiWDkDFpF0RJLLNFy107FCwbE94P2WWBP4clmm20W5ZuRWRg5g8aWW27ZcgpL21qiEgPTe8k999wTgnvqvWNuOVJkJA3anONlllmmpSkbxCl03JRXvUAXlhNOOCFUSN1yyy3p1UhkVkbSoO1sDKPecLVa2Jm56oagdxtuNfmmlriDJDuNdJ+RNGjoZsmom3Vb9Sdbeumlu94IwG4s8OXnjUTGYmQNmuus+UGzUzYuv\/zyUK3ULbjYzsnrrLNO6W2UIsPLyBo0tN7RRL4ZTjzxxLCjdwMReK2BJk+eHKY4RiLNMtIG\/eCDD4ZB8eqcx2K33XYLo2+rRkOGRsPTI5FGjLRBY9NNN00OOeSQ9Fl9dt1112Tq1Knps\/Ih3zzggANC8Ufsvhlpl5E36GuuuSZZbrnlgkE1YpNNNkkOPvjg9Fm5qNNWZ33ooYfG7puRjhh5g9ZrTGteht2IFVdcMbn44ovTZ+VBvmlsT6Ph6ZFIs4y8QeOkk04KDfQboTCjTEGHfLYz+dZbbx1mTkciZRAN+v9hXJRj9Yaz6cU1YcKEMBu6DO68887gFVB+xcmOkTKJBp0iiq3euRZmTetJVkYhhPJLxjzIvb0j\/Us06BQCk3opLHlhOu5OumbSgutrRr45aG2AI4NDNOgc6667bnCDi+ieyeV+5pln0iutYXg6+WYn7Y8ikWaIBp2DXlvwy9DzPEQeq666avqseXydww47LEhG4\/D0SDeIBp1DC5\/ll18+ufbaa9MrM5GuGisKXsRkR903dQptd2ePRFolGnQBQatiq9799tsvFEk0i0IODe4vu+yy9Eok0h2iQRfQmUQV1owZM9IrSbLjjjs2JfukNtOzjPE\/8sgj6dVIpHtEg66BOVBTpkxJn8006MMPPzx9VpsHHnggyDePOOKIWCEV6RnRoGsghWXKRjY2dvXVV0+OOuqo8P8iGiScddZZIZgWh6dHek006Dqofc66hKywwgrJTTfdFP6fR\/fNnXfeOQ5Pj\/QN0aDrILClIEP1k\/rk22+\/Pf3ITCi9VlllleSUU06J3TcjfUM06DqYsjFx4sQgBiEque+++8J11VnEJ\/LSWupGIv1ENOgGHH\/88WEXXnbZZUPLXy72pEmTQoVUzC1H+pFo0A2gv55\/\/vmTxRdfPLnyyiuD4uu8885LPxqJ9B\/RoBvw3HPPBeXYuHHjgtstNRWJ9DPRoBtw1113JXPPPXcwaDnm2B4o0u9Egx4DpZPTp0+PEysiA0E06EhkiIgGHYkMEdGgI5EhIhp0AzTwe\/rpp0O0OxIZBKJBN0CjgznnnDO57rrr0iuRSH8TDboBVGHzzjtv2KUjkUEgGnQd9OqmEtOpMxIZFKJB1+Hqq68OghKNAyORQSEadB122GGH4G4bDB+JDArRoGsgqq0gY6ONNkqvRCKDQTToGug+YsJFnAgZGTSiQUciQ0Q06EhkiIgGHYkMDUnyf42AyirjO1aCAAAAAElFTkSuQmCC\" y=\"2\"><\/image> <\/g> <\/svg><\/span><\/p><p>H&igrave;nh ch&oacute;p S.ABCD c&oacute; 4 m\u1eb7t b&ecirc;n l&agrave; (SAB), (SBC), (SCD), (SDA). Do \u0111&oacute; <strong>A <\/strong>\u0111&uacute;ng.<\/p><p>S l&agrave; \u0111i\u1ec3m chung th\u1ee9&nbsp;nh\u1ea5t c\u1ee7a hai m\u1eb7t ph\u1eb3ng (SAC) v&agrave; (SBD). G\u1ecdi O l&agrave; giao \u0111i\u1ec3m c\u1ee7a AC v&agrave; BD, v&igrave; AC thu\u1ed9c m\u1eb7t ph\u1eb3ng (SAC) v&agrave; BD thu\u1ed9c m\u1eb7t ph\u1eb3ng (SBD) n&ecirc;n O l&agrave; \u0111i\u1ec3m chung th\u1ee9 hai&nbsp;c\u1ee7a hai m\u1eb7t ph\u1eb3ng (SAC) v&agrave; (SBD). V\u1eady&nbsp;SO l&agrave; giao tuy\u1ebfn c\u1ee7a hai m\u1eb7t ph\u1eb3ng n&agrave;y. Do \u0111&oacute; <strong>B<\/strong> \u0111&uacute;ng.<\/p><p>T\u01b0\u01a1ng t\u1ef1 ta c\u0169ng c&oacute; SI l&agrave; giao tuy\u1ebfn c\u1ee7a (SAD) v&agrave; (SBC). Do \u0111&oacute; <strong>C<\/strong> \u0111&uacute;ng.<\/p><p>Ta th\u1ea5y (SAB)&nbsp;&cap; (SAD) = Sa m&agrave; SA kh&ocirc;ng ph\u1ea3i \u0111\u01b0\u1eddng trung b&igrave;nh c\u1ee7a h&igrave;nh thang ABCD n&ecirc;n <strong>D<\/strong> sai.<\/p><p>Ch\u1ecdn&nbsp; &nbsp;&nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong> Giao tuy\u1ebfn c\u1ee7a hai m\u1eb7t ph\u1eb3ng (SAB) l&agrave; (SAD) l&agrave; \u0111\u01b0\u1eddng trung b&igrave;nh c\u1ee7a h&igrave;nh thang ABCD.<\/span><\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2024-01-01 02:13:45","option_type":"txt","len":3},{"id":"5057","post_id":"7067","mon_id":"1158924","chapter_id":"1159156","question":"<p>Cho t\u1ee9 di\u1ec7n ABCD. G\u1ecdi g l&agrave; tr\u1ecdng t&acirc;m tam gi&aacute;c BCD. Giao tuy\u1ebfn c\u1ee7a m\u1eb7t ph\u1eb3ng (ACD) v&agrave;&nbsp;(GAB).<\/p>","options":["<strong>A.<\/strong> AM v\u1edbi M l&agrave; trung \u0111i\u1ec3m c\u1ee7a AB. ","<strong>B.<\/strong> AN v\u1edbi N l&agrave; trung \u0111i\u1ec3m c\u1ee7a CD. ","<strong>C.<\/strong> AH v\u1edbi H l&agrave; h&igrave;nh chi\u1ebfu c\u1ee7a B tr&ecirc;n CD. ","<strong>D.<\/strong> AK v\u1edbi K l&agrave; h&igrave;nh chi\u1ebfu c\u1ee7a C tr&ecirc;n BD. "],"correct":"2","level":"2","hint":"","answer":"<p><span class=\"svgedit\"><svg height=\"250\" width=\"250\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g>&lt;title&gt;&lt;\/title><rect fill=\"#fff\" height=\"252\" 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>&lt;title&gt;&lt;\/title><image height=\"243\" id=\"svg_1\" width=\"243\" x=\"1.5\" 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\" y=\"1.5\"><\/image> <\/g> <\/svg><\/span><\/p><p>A l&agrave; \u0111i\u1ec3m chung th\u1ee9 nh\u1ea5t gi\u0169a hai m\u1eb7t ph\u1eb3ng (ACD) v&agrave; (GAB).<\/p><p>G\u1ecdi N l&agrave; giao \u0111i\u1ec3m c\u1ee7a BG v&agrave; CD th&igrave; N l&agrave; trung \u0111i\u1ec3m c\u1ee7a CD. Khi \u0111&oacute;<\/p><p><span class=\"math-tex\">$\\begin{cases}N\\in BG \\subset(GAB)\\\\N\\in CD\\subset(ACD)\\end{cases}$<\/span>&nbsp;&rArr; N l&agrave; \u0111i\u1ec3m chung th\u1ee9 hai c\u1ee7a hai m\u1eb7t ph\u1eb3ng (GAB) v&agrave; (ACD).<\/p><p>V\u1eady (GAB)&nbsp;&cap; (ACD) = AN.<\/p><p>Ch\u1ecdn&nbsp; &nbsp;&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong> AN&nbsp;v\u1edbi N&nbsp;l&agrave; trung \u0111i\u1ec3m c\u1ee7a CD.&nbsp;<\/span><\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2024-01-01 02:40:25","option_type":"txt","len":3},{"id":"5058","post_id":"7067","mon_id":"1158924","chapter_id":"1159156","question":"<p>Cho \u0111i\u1ec3m A kh&ocirc;ng n\u1eb1m tr&ecirc;n m\u1eb7t ph\u1eb3ng (P) ch\u1ee9a tam gi&aacute;c BCD. L\u1ea5y \u0111i\u1ec3m E, F l&agrave; c&aacute;c \u0111i\u1ec3m l\u1ea7n l\u01b0\u1ee3t n\u1eb1m tr&ecirc;n c&aacute;c c\u1ea1nh AB, AC. Khi \u0111&oacute; EF v&agrave; BC c\u1eaft nhau t\u1ea1i I th&igrave; I <strong>kh&ocirc;ng ph\u1ea3i <\/strong>l&agrave; \u0111i\u1ec3m chung c\u1ee7a c\u1eb7p m\u1eb7t ph\u1eb3ng n&agrave;o sau \u0111&acirc;y?<\/p>","options":["<strong>A.<\/strong> (BCD) v&agrave; (DEF)","<strong>B.<\/strong> (BCD) v&agrave; (ABC)","<strong>C.<\/strong> (BCD) v&agrave; (AEF)","<strong>D.<\/strong> (BCD) v&agrave; (ABD)"],"correct":"4","level":"2","hint":"","answer":"<p><span class=\"svgedit\"><svg height=\"260\" width=\"200\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g>&lt;title&gt;&lt;\/title><rect fill=\"#fff\" height=\"262\" id=\"canvas_background\" width=\"202\" 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>&lt;title&gt;&lt;\/title><image height=\"250\" id=\"svg_1\" width=\"197\" x=\"2.5\" 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\" y=\"3\"><\/image> <\/g> <\/svg><\/span><\/p><p>\u0110i\u1ec3m I l&agrave; giao \u0111i\u1ec3m c\u1ee7a EF v&agrave; BC m&agrave;&nbsp;<span class=\"math-tex\">$\\begin{cases}EF\\subset(DEF)\\\\EF\\subset(ABC)\\\\EF\\subset(AEF)\\end{cases}$<\/span>&nbsp; n&ecirc;n&nbsp;<span class=\"math-tex\">$\\begin{cases}I\\in(BCD)\\cap(DEF)\\\\I\\in(BCD)\\cap(ABC)\\\\I\\in(BCD)\\cap(AEF)\\end{cases}$<\/span>&nbsp;.<\/p><p>M\u1eb7t kh&aacute;c&nbsp;&nbsp;(BCD) v&agrave;&nbsp;(ABD) = BD m&agrave; I&nbsp;&notin; BD n&ecirc;n I kh&ocirc;ng ph\u1ea3i \u0111i\u1ec3m chung c\u1ee7a (BCD) v&agrave; (ABD).<\/p><p>Ch\u1ecdn&nbsp; &nbsp;&nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong> (BCD) v&agrave;&nbsp;(ABD)<\/span><\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2024-01-01 02:52:08","option_type":"txt","len":2}]}
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