如图,
是工人李大爷自制的一个三角形纸板(厚度不计),已知
,
,李大爷将该三角形纸板放置在一个圆形工件上,使得顶点
都在图形工件的圆周上,将直角边
与圆形工件圆周的交点记为点
,恰好发现
,则该圆形工件的直径长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8e9ec412ea0355e4e5cd06c60e5fee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a911adc290d7db75ef6c6c5f450e8f15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e478787ebfeb68a5a7594dbd9eecd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b7513e09cccf40c3a483064b97e48.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2024-03-29 16:51:42
|
相似题推荐
单选题
|
适中
(0.65)
名校
【推荐1】如图,
中,
,
,
,
分别是
,
的中点,
,则
的长度为( )
![](https://img.xkw.com/dksih/QBM/2019/8/14/2268648745803776/2268736267984896/STEM/8ef3009d-7676-4bd7-8d5c-76955f8b838d.png?resizew=181)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7c17b482b7b126ba6650d4ca95254b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eb37725b8bb43fdc74a7d797dbd064d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c884b508394b3ab50734b584d9ec783c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c4da45bdf418ec772246ac211122c0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://img.xkw.com/dksih/QBM/2019/8/14/2268648745803776/2268736267984896/STEM/8ef3009d-7676-4bd7-8d5c-76955f8b838d.png?resizew=181)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】如图,在
中,
,
,过点
作
交
于点
,过点
作
交
于点
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6060d9a82ed5405a1ea8cd824448b6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fffa3d9c32da53b0ea0c338012ea20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9060f03b9ee41d70d135b1e1a8902ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bffd657e48b15b9b54a55817e2c26b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/3/151f64e4-31d3-4472-85e2-a7069d8f66ab.png?resizew=258)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐1】如图,AB为
的直径,点C,点D是
上的两点,连接CA,CD,AD.若
,则
的度数是( )
![](https://img.xkw.com/dksih/QBM/2021/1/25/2643719943061504/2645093781413888/STEM/d37d539a-d395-4c42-aea1-23455981071a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c49b0ba9d16d37be55fdafec031ae13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
![](https://img.xkw.com/dksih/QBM/2021/1/25/2643719943061504/2645093781413888/STEM/d37d539a-d395-4c42-aea1-23455981071a.png)
A.110° | B.120° | C.130° | D.140° |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐2】如图,AB是圆O的直径,C、D是圆O上的点,且OC∥BD,AD分别与BC、OC相交于点E、F.则下列结论:
①AD⊥BD;②∠AOC=∠ABC;③CB平分∠ABD;④AF=DF;⑤BD=2OF.
其中一定成立的是( )
![](https://img.xkw.com/dksih/QBM/2016/12/20/1633713713414144/1633713713577984/STEM/f1f3db52c19447be89ae64bce3a98564.png)
①AD⊥BD;②∠AOC=∠ABC;③CB平分∠ABD;④AF=DF;⑤BD=2OF.
其中一定成立的是( )
![](https://img.xkw.com/dksih/QBM/2016/12/20/1633713713414144/1633713713577984/STEM/f1f3db52c19447be89ae64bce3a98564.png)
A.①③⑤ | B.②③④ | C.②④⑤ | D.①③④⑤ |
您最近一年使用:0次