如图,弦CD垂直于⊙O的直径AB,垂足为P,且CD=2
,BP=1,求⊙O的半径.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/28/17b06321-1847-4e94-b4e7-411b820d196e.png?resizew=129)
更新时间:2019-04-05 11:08:42
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【推荐1】已知一次函数
的图象与x轴交于点A,与y轴交于点B,求
的长.
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【推荐2】如图,E是正方形
的边
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的延长线交
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/11/063399fe-bd89-488f-85c3-577e8b06cd4c.png?resizew=209)
(1)求证:
.
(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ed934aa29859e93b1f758229a12581.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/11/063399fe-bd89-488f-85c3-577e8b06cd4c.png?resizew=209)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38d97f03faed3152db2fd3bd1919944.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/518c01271fd11fa87af3e2ef4e66d169.png)
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【推荐1】如图,
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【推荐2】如图,在
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