如图,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a832d1736d7c35f7eac1c5495e560a7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/13/52f958e2-2df2-47dd-97ea-508bfee95852.png?resizew=149)
22-23七年级下·山西临汾·期末 查看更多[2]
更新时间:2023-07-06 05:52:19
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相似题推荐
解答题-证明题
|
适中
(0.65)
【推荐1】如图,
内接于
,
平分
交
于
,
的平分线交直线
于
.
(1)写出
与
的关系,并证明;
(2)若
的外角平分线交直线
于
,其余条件不变,则
与
有何关系?试证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ccea461315a9d05aa0193b937d4bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146a63bac5ecd239f2696801e8eaa0b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ccea461315a9d05aa0193b937d4bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f10681704c4fccfd37664eaf34391dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://img.xkw.com/dksih/QBM/2018/12/21/2101536690061312/2102399664578560/STEM/63a81ee350d6456a91cd9663e920f038.png?resizew=85)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ebc4a7388a1bb05c02dc79e6c0601b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0c79f975d766486cd369ca057413e78.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f10681704c4fccfd37664eaf34391dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ebc4a7388a1bb05c02dc79e6c0601b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b664f3a011a2f1f31c66a2635c5367c.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】如图,在四边形
中,
,
,
,
,
是
的平分线,与边
交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/2805582a-5297-4237-bd8f-f4dda3df609e.png?resizew=175)
(1)求
的度数;
(2)
______度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bec9ca32fdbc25ddacf2f0de74c23b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43aadb327259f98f5b908391781b367c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2feceb4322d1f4627e0558c1a81743b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7243e07ec64ced92d43fcf64a47295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ff575e55857af133edb24c8e61504f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827d77011af6d7cbfca37ed0f8229526.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/2805582a-5297-4237-bd8f-f4dda3df609e.png?resizew=175)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1caed8e8c73589dab6dba2bde590a735.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0716153cccf2687c7604ee9177ca33d.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
解题方法
【推荐1】如图,在五边形
中,
,
,
.
![](https://img.xkw.com/dksih/QBM/2020/7/15/2506416778215424/2507143229734912/STEM/13c6f3c3-ffc6-4aba-a8ad-f7fb47579a03.png)
(1)求证:
;
(2)当
时,求
的度数;
(3)如果
的外心与
的内心重合,请直接写出
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9142a8490de14a87eda628ffa7e28982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c44150a03c7cfda8ff40aa9bd9b1862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21bfc82e4e534f6261bfb83c40e93d04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/027a2336d412e6a404742da1367ce736.png)
![](https://img.xkw.com/dksih/QBM/2020/7/15/2506416778215424/2507143229734912/STEM/13c6f3c3-ffc6-4aba-a8ad-f7fb47579a03.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9566c0acc526b4ffc089c5608831b2f9.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5fe8897de9cd1844303353867e945f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060705794ef87cc71dac40c57f27b1d2.png)
(3)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f8f01137e92c0f2e63467036ae9cce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
【推荐2】已知两个多边形的内角和为1440°,且两多边形的边数比为1:3,求这两个多边形的边数.
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