3 years ago

Cho ∆ABC;phân giác AD,BE,CF cắt nhau tại I . a, Góc IAC+góc IBC+ góc ICA=? b, Kẻ IH vuông góc với BC . C/m Góc BIH=góc CID

Mathematics

1 answer:

Iteru [2.4K]3 years ago

4 0

Can you post a pic???

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