如图,
切
于点C,
,
的半径为
,
,则
( )
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/22/5c57f9ec-27dd-451d-8de2-ccb5f4c8ca49.png?resizew=159)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fca3734de79f7f50b552ef62b29dc7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b1fe1b971b780e443a9b13621611c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9040c9795e7132ebf65ede1f98c4d72b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6a548e8a2e2205f2faa87e25180a083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/22/5c57f9ec-27dd-451d-8de2-ccb5f4c8ca49.png?resizew=159)
A.6 | B.![]() | C.![]() | D.![]() |
更新时间:2023-04-15 18:21:07
|
相似题推荐
单选题
|
较易
(0.85)
【推荐1】如图,在
中,点M是
边上一个动点.若
,
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eeb0c8df3d8c5260768c5e407b3583a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b939af5ba06e279cce39396aaf0fae06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
A.8 | B.9.6 | C.10 | D.45 |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
【推荐2】如图,等腰三角形
的底边
长为4,面积是16,腰
的垂直平分线
分别交
边于E,F点.若点D为
边的中点,点M为线段
上一动点,则
周长的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e865141c0f519d944198bebb99d2dfff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e59b7c0d4a0b312e674b7bb061240b.png)
A.6 | B.8 | C.10 | D.12 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐1】在直角三角形中,若勾为6,股为8,则弦为( )
A.10 | B.11 | C.12 | D.13 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】如图,半径
弦
于
,
,
,则
的长度为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/927f9188-0f61-428e-b47a-215212152d52.png?resizew=123)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6d39135a2f8472d66ea00eda3b13ab.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/9419302c045670b2f7384d6b0e7b7738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/927f9188-0f61-428e-b47a-215212152d52.png?resizew=123)
A.3 | B.4 | C.6 | D.8 |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
【推荐1】下列说法中,不正确的有( )
①相等的圆周角所对的弧相等;
②平分弦的直径也平分弦所对的弧;
③长度相等的两条弧是等弧;
④经过圆心的每一条直线将圆分成两条等弧;
⑤圆的切线垂直于圆的半径;
⑥一个圆有无数个内接三角形.
①相等的圆周角所对的弧相等;
②平分弦的直径也平分弦所对的弧;
③长度相等的两条弧是等弧;
④经过圆心的每一条直线将圆分成两条等弧;
⑤圆的切线垂直于圆的半径;
⑥一个圆有无数个内接三角形.
A.2个 | B.3个 | C.4个 | D.5个 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】下列说法正确的是( )
A.了解一批灯泡的使用寿命,应采用全面调查 |
B.圆的切线垂直于圆的半径 |
C.角平分线上任意一点到角两边的距离相等 |
D.明天降雨概率![]() ![]() |
您最近一年使用:0次