如图,在三棱柱ABC-A1B1C1中,D是BC的中点.求证:A1B‖平面AC1D
图没有,但我想应该不难画出来.
人气:195 ℃ 时间:2019-10-17 14:20:11
解答
![](http://g.hiphotos.baidu.com/zhidao/wh%3D600%2C800/sign=f0b16110cf1b9d168a929267c3ee98b7/8644ebf81a4c510f5f8e11d56159252dd52aa5b3.jpg)
如图
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