平行四边形ABCD中,对角线AC、BD相交于点O,△ABO为等边三角形,AB=10cm,这个平行四边形ABCD的面积为 ___ cm2.
![](https://img.xkw.com/dksih/QBM/2021/11/12/2849477860745216/2853445661671424/STEM/817c4f60-a8cf-4067-9f75-60cf14c5c3d3.png)
21-22九年级上·山东青岛·期中 查看更多[2]
更新时间:2021-11-17 21:32:58
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【推荐1】如图,在
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的长为______ .
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【推荐2】如图,在
中,点E在边
上,
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于
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【推荐1】顺次连接四边形各边中点,所得的图形是__________ .顺次连接对角线______________ 的四边形的各边中点所得的图形是矩形.顺次连接对角线_________ 的四边形的各边中点所得的四边形是菱形.顺次连接对角线_________ 的四边形的各边中点所得的四边形是正方形.
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