如图,
与
相切于点
,弦
,若
,则
的度数是( )
![](https://img.xkw.com/dksih/QBM/2019/5/18/2206393035415552/2207868581011456/STEM/b2802d54f8ef415389c28b5b014b528c.png?resizew=136)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05f87e613140c1729f06a665af617bae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a66d41574320ac8ed7088fa0f9bd68f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://img.xkw.com/dksih/QBM/2019/5/18/2206393035415552/2207868581011456/STEM/b2802d54f8ef415389c28b5b014b528c.png?resizew=136)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2019-05-20 19:03:02
|
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【推荐1】如图,在Rt△ABC中,∠ACB=90°,AC=3,BC=4,点P以每秒一个单位的速度沿着B—C—A运动,⊙P始终与AB相切,设点P运动的时间为t,⊙P的面积为y,则y与t之间的函数关系图像大致是
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A.![]() | B.![]() | C.![]() | D.![]() |
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单选题
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较易
(0.85)
【推荐2】如图,
外有一点P,连接
,分别以点O和点P为圆心,大于
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与
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A.![]() | B.4 | C.![]() | D.2 |
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