如图,在平行四边形ABCD中,∠ACB=90°,过点D作DE⊥BC交BC的延长线于点E,连接AE交CD于点F,连接BF.若∠ABC=60°,CE=2,则BF=_____ .
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21-22八年级下·北京海淀·期中 查看更多[4]
2021-2022学年北京市十一晋元中学八年级下学期期中数学试卷(已下线)专题9.13 矩形(基础篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(苏科版)(已下线)22.3.1.2 矩形的判定-2022-2023学年八年级数学下册《考点·题型·技巧》精讲与精练高分突破系列(沪教版)(已下线)第04讲 矩形的判定、判定与性质综合-【暑假自学课】2023年新九年级数学暑假精品课(北师大版)
更新时间:2022-09-26 09:40:21
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