已知△ABC,△BEF都为等腰直角三角形,∠ABC=∠BEF=90°,连AF,CF,点M为AF中点,连EM,将△BFE绕点B旋转

2020-07-20 教育 113阅读
I have worked it out, you can send me email at cljiang25@yahoo.com to ask for it. JIANG
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