如图所示,正方形ABCD的对角线相交于点O,点E是BC上任意一点,EG⊥BD于G,EF⊥AC于F,若AC=10,则EG+EF的值为( )
![](https://img.xkw.com/dksih/QBM/2019/1/14/2118731355529216/2120135184867328/STEM/4c4dd72474f84083addcbc209b0e01ac.png?resizew=69)
![](https://img.xkw.com/dksih/QBM/2019/1/14/2118731355529216/2120135184867328/STEM/4c4dd72474f84083addcbc209b0e01ac.png?resizew=69)
A.10 | B.4 | C.8 | D.5 |
更新时间:2013-01-14 15:04:13
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【知识点】 根据正方形的性质求线段长解读
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