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三角形△ABC AB＝25 #2

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cgfeel opened this issue Dec 4, 2022 · 0 comments

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slogen

cgfeel commented Dec 4, 2022

已知三角形△ABC AB＝25 AC＝18 sin∠BAC＝0.2 过AB中点K 作KF⊥AB交AC于F ，连接中点K及三角形顶点C，得三角形KFC，求证KFC=V50

innocces added the slogen label

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