如图,AD是△ABC中∠BAC的角平分线,DE⊥AB于点E,S△ABC=9,DE=2,AB=5,则AC长是( )
![](https://img.xkw.com/dksih/QBM/2017/11/8/1812803168821248/1813707943862272/STEM/b93c6e4c-ffc3-4785-9cb7-163a64eb2398.png?resizew=234)
![](https://img.xkw.com/dksih/QBM/2017/11/8/1812803168821248/1813707943862272/STEM/b93c6e4c-ffc3-4785-9cb7-163a64eb2398.png?resizew=234)
A.3 | B.4 | C.5 | D.6 |
17-18八年级上·重庆·期中 查看更多[8]
更新时间:2017-11-09 21:41:10
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【推荐1】如图,在Rt△ABC中,
,AD平分∠BAC,交BC于点D,若
,△ABD的面积为60,则CD长( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/12/e28f12a8-91f3-4812-bed7-6fd8824aaeff.png?resizew=126)
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A.12 | B.10 | C.6 | D.4 |
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【推荐2】如图所示,点
是
内一点,
平分
,
于点
,连接
,若
,
,则
的面积是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/b8f36485-c3d7-4f93-a50b-481587108500.png?resizew=160)
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A.20 | B.26 | C.60 | D.120 |
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