![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a5328919a7cec382c2e91c9c528fc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665ffcdb7c57534dc184cc840471f2f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665ffcdb7c57534dc184cc840471f2f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665ffcdb7c57534dc184cc840471f2f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665ffcdb7c57534dc184cc840471f2f5.png)
A.1:2:3:4 | B.1:2:2:1 | C.2:2:1:1 | D.3:2:3:2 |
更新时间:2017-09-29 19:16:55
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【知识点】 利用平行四边形的性质求解解读
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【推荐1】如图,平行四边形ABCD的对角线AC、BD相交于点O,下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/2013/9/4/1573678166269952/1573678172176384/STEM/d3a0724769224b29afa026e406a1bfa9.png)
![](https://img.xkw.com/dksih/QBM/2013/9/4/1573678166269952/1573678172176384/STEM/d3a0724769224b29afa026e406a1bfa9.png)
A.S![]() |
B.AC=BD |
C.AC⊥BD |
D.![]() |
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适中
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【推荐2】平行四边形ABCD与等边三角形AEF按如图所示的方式摆放,如果∠B=45°,则∠BAE的大小是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/29/71f04f4f-f63c-4751-a206-b5e3dd533c81.png?resizew=230)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/29/71f04f4f-f63c-4751-a206-b5e3dd533c81.png?resizew=230)
A.75° | B.80° | C.100° | D.120° |
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