若
∽
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fa2e99edada1ee443e6ab85657b5dd5.png)
![](https://img.xkw.com/dksih/QBM/2015/5/27/1573843691233280/1573843697082368/STEM/9a4157f2196143c2bd5c94800aee63a7.png)
![](https://img.xkw.com/dksih/QBM/2015/5/27/1573843691233280/1573843697082368/STEM/c52787374c064d5ca30c09e6beb570ca.png)
A.1:3 | B.1:9 | C.1:![]() | D.1:1.5 |
更新时间:2015-05-27 14:15:51
|
【知识点】 利用相似三角形的性质求解解读
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【推荐1】如图,等边△ABC的边长为3,P为BC上一点,且BP=1,D为AC上一点,若∠APD=60°,则CD的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/23/8f76d69d-f17a-4418-ab13-171f2a37a5e3.png?resizew=174)
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【推荐2】如图,在
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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A.9 | B.6 | C.3 | D.4 |
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