定义:在等腰三角形中,底边与腰的比叫做顶角的正对,顶角
的正对记作
,即
底边:腰.如图,在
中,
,
.则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/7e56330e-465b-44b7-befb-225d2ed36020.png?resizew=109)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c91d05b1728630e6032820e2539811b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c98989bb1f4e184705a7a3714b17234f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83a4d634d3d678a1912a827fade6a0d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed9d32fccfdef44d94e2ca1c0a2bb557.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/7e56330e-465b-44b7-befb-225d2ed36020.png?resizew=109)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2020-02-17 19:59:04
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【推荐2】若x,y满足|x﹣3|+(y﹣6)2=0,则以x,y的值为两边长的等腰三角形的周长为( )
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