已知∠AOB=100°,过点O作射线OC、OM,使∠AOC=20°,OM是∠BOC的平分线,则∠BOM的度数为( )
A.60° | B.60°或40° | C.120°或80° | D.40° |
21-22七年级上·黑龙江齐齐哈尔·期末 查看更多[4]
黑龙江省齐齐哈尔市龙江县2021-2022学年七年级上学期期末数学试题(已下线)考点18 线段、角、相交线与平行-备战2022年中考数学一轮复习考点帮(全国通用)黑龙江省齐齐哈尔市2021-2022学年七年级上学期期末数学试题黑龙江省齐齐哈尔市龙江县2021-2022学年七年级上学期期末数学试题
更新时间:2022-02-24 15:57:30
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【推荐1】如图,已知AO⊥OB,CO⊥DO,∠BOC=β°,则∠AOD的度数为( )
![](https://img.xkw.com/dksih/QBM/2023/12/26/3397387742134272/3397536775266304/STEM/e8bdcf4d28c34b58ab87b775152b5db5.png?resizew=280)
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【推荐2】如图,已知直线
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