如图,四边形 ABCD 是⊙O 的内接四边形,点 D 是
的中点,点 E 是
上的一点,若∠CED=40°,则∠ADC= 度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667349d99185bb045030b733352ff7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed41d321f4c0717ac5b443aad942d9a7.png)
![](https://img.xkw.com/dksih/QBM/2018/12/26/2105194143825920/2113392318881792/STEM/856136ebdafa40789062bad849a36ac7.png?resizew=142)
17-18九年级上·北京·单元测试 查看更多[6]
2017-2018学年第一学期北京课改版九年级数学上册_第21章_圆_单元检测试题苏科版九年级数学上册_第二章_对称图形-圆_单元检测试题【校级联考】河南省三门峡市西部协作区2019届九年级上学期期中考试数学试题(已下线)【万唯原创】圆的性质及其证明与计算·基础必练(一)(已下线)【万唯原创】圆的基本性质·满分特训(一)(已下线)【万唯原创】2017年山西中考数学-试题研究练习册-第六章6.1
更新时间:2018-09-17 15:20:39
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【知识点】 已知圆内接四边形求角度解读
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