已知
点在圆
直径
的延长线上,
切圆
于点
,
是
的平分线交
于点
,交于
点
.
(1)求
的度数;
(2)
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7316430d26a6f4bcc0bdadfd1a5330a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed647eac1acfd975e27b759678919f4f.png)
更新时间:2017-02-08 11:27:34
|
【知识点】 几何证明选讲
相似题推荐
解答题-证明题
|
适中
(0.64)
【推荐1】选修4-1:几何证明选讲
如图,BA是⊙O的直径,AD⊥AB,点F是线段AD上异于A、D的一点,且BD、BF与⊙O分别交于点C、E.求证:
.
如图,BA是⊙O的直径,AD⊥AB,点F是线段AD上异于A、D的一点,且BD、BF与⊙O分别交于点C、E.求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6edea9bd1da87ebee1c97e789fee9c6.png)
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572133714591744/1572133720875008/STEM/6b6d00a82b374cef9c551e388fc6b2ab.png)
您最近一年使用:0次
解答题
|
适中
(0.64)
【推荐2】如图,
的直径
的延长线与弦
的延长线相交于点
,
为
上一点,
,
交
于点
,且
.
(1)求
的长度;
(2)若圆
与圆
内切,直线
与圆
切于点
,求线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7095a91b7486c5299db97f9eacb7494.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d48ac31e4da45e6a4a1444ec08bab8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a44be92f38e063a01b8cd67418815cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e9c70a7bb76abc885c73c7ef7d8c86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e1b2df25efcb6812f4ad70e9cd1d731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7095a91b7486c5299db97f9eacb7494.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6cf09cf2836a6a1ed407fbfb62bfaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/364145abbd0f453f2eedc75c1f49d14c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d48ac31e4da45e6a4a1444ec08bab8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2391c0e2fc44598610d519dacb778062.png)
![](https://img.xkw.com/dksih/QBM/2015/12/30/1572408408072192/1572408414314496/STEM/78bc73dcd0564444b9402e989280e512.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf64bc4790f3f5f3b319d01ff7e5ab8.png)
(2)若圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2391c0e2fc44598610d519dacb778062.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f97e22c9dd88a2510de9e5a309191934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfb0f155f4d16617ce23a670da678f7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2391c0e2fc44598610d519dacb778062.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/166703f700475d6bcd4b8ee7c71f2c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfb0f155f4d16617ce23a670da678f7c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/2/7cad0126-9ed6-4c83-a433-98b0e471716b.png?resizew=170)
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