如图,五边形ABCDE的两个内角平分线相交于点O,∠1,∠2,∠3是五边形的3个外角,若∠1+∠2+∠3=220°,则∠AOB=___________ .
20-21八年级上·江苏南京·开学考试 查看更多[8]
江苏省南京宁海中学2020-2021学年上学期八年级9月期初考试题(已下线)第04讲 多边形及其内(外)角和-【暑假自学课】2022年新八年级数学暑假精品课(人教版)(已下线)专题11.3 多边形及内角和-【帮课堂】2022-2023学年八年级数学上册同步精品讲义(人教版)(已下线)第03讲 多边形及其内角和(2大考点15种解题方法)-2022-2023学年八年级数学考试满分全攻略(人教版)(已下线)第十一章 三角形 章末检测卷-2022-2023学年八年级数学上册重难题型全归纳及技巧提升专项精练(人教版)(已下线)专题05 两内角平分线求角-【微专题】2022-2023学年八年级数学上册常考点微专题提分精练(人教版)(已下线)专题7.1 平面图形的认识(二) 重难点题型18个-2022-2023学年七年级数学下册重难题型全归纳及技巧提升专项精练(苏科版)创优作业(21)平行四边形-【金牌题库】2023八年级数学暑假作业(北师大版)
更新时间:2021-09-05 14:03:00
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