如图,△ABC是等边三角形,AD⊥BC,DE⊥AB,垂足分别为D,E,如果AB=8cm,则BD=__________ cm,∠BDE=_________ °,BE=__________ cm.
![](https://img.xkw.com/dksih/QBM/2013/3/1/1573606677635072/1573606688374784/STEM/1beddb093ebb44449ef2ad60d0640446.png?resizew=177)
13-14九年级上·全国·课后作业 查看更多[2]
更新时间:2016-12-05 16:13:54
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