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tomboyandbadgirl
2 năm trước
Cho tam giác ABC vuông A, M là tđiểm AB a) Biết BC = 10cm, AB = 6cm. Tính AC b) Trên tia đối tia MC lấy D sao cho MD = MC. Cm: tam giác MAC = tam giác MBD và AC = BD c) Gọi K là điểm trên AM sao cho AK = 2/3 AM. Gọi N là giao điểm của CK và AD, I là giao điểm của BN và CD. Cm: CD = 3.ID AI GIỎI HÌNH GIÚP VỚI Ạ, ĐẦY ĐỦ NHA, NHỚ VẼ HÌNH.💓
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