(2016福建省厦门市)如图,在矩形ABCD中,AD=3,以顶点D为圆心,1为半径作⊙D,过边BC上的一点P作射线PQ与⊙D相切于点Q,且交边AD于点M,连接AP,若AP+PQ=
,∠APB=∠QPC,则∠QPC 的大小约为________ 度________ 分.(参考数据:sin11°32′=
,tan36°52′=
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b10e8abf8690e4b129466ddb918bcc94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
![](https://img.xkw.com/dksih/QBM/2018/2/7/1877064447328256/1890788865294336/STEM/da7d5381-cb27-44c1-9c04-f3a190c4ce42.png)
2018九年级·全国·专题练习 查看更多[1]
(已下线)决胜2018中考压轴题全揭秘 专题17 圆问题
更新时间:2018-02-26 19:22:42
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【推荐1】如图,
是
的弦,点
是圆外一点,
与
相切于点
,
.若
,
,则
的长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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【推荐2】如图,PA、PB分别与⊙O相切于A、B两点,点C为⊙O上一点,连接AC、BC,若∠P=50°,则∠ACB的度数为____________
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/13/8032600f-a907-4695-97b9-72938a95dae2.png?resizew=209)
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