Mathematics
Junior High

1〜3のやり方がよく分かりません💦教えてください!

Answers

(1)△OADと△OCBが相似なのでそれを利用すれば解けます

(2)△ABCと△AEOが相似なのでそれを利用すれば解けます

(3)△DBCと△DOFが相似なのでそれを利用すれば解けます(2)とほぼ同じです

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