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三角形面积、周长最值，与均值不等式综合[高一春季6]
高一数学同步课堂58/127
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App09:29![三角形面积、周长最值，与均值不等式综合[高一春季6]](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/c2536d0b8174408b807b0e9ad26d485c~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501300258188C2C7CC6AB172F35D333&requestFrom=704&version_code=80402&x-expires=1769713098&x-signature=kmLxVqW2gBQ6wryC2PUSU%2F2C290%3D)
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App13:31![立体几何的图形嵌套及体积、表面积[高一春季7]](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/268ed7dff1614207bd503158c90879ad~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501300258188C2C7CC6AB172F35D333&requestFrom=704&version_code=80402&x-expires=1769713098&x-signature=1uhDTdeCHNGhrt2ogKZ%2BVb%2ByPKc%3D)
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App12:36![[高一春季10]立体几何面面垂直，其实也不难！](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/63da19ccb0b9416688051af8c7cd3941~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202501300258188C2C7CC6AB172F35D333&requestFrom=704&version_code=80402&x-expires=1769713098&x-signature=CZnZvmZKcxlZ0tvA0XBhdDJfD6o%3D)
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