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nguyen2007
2 năm trước
Cho hình chữ nhật ABCD, AB=8cm, BC=6cm BH ⊥⊥ AC tại H, DM ⊥⊥ AC tại M - CM : tam giác ABH đồng dạng với tam giác ACB từ đó suy ra AC.AH=AB2 - Tính AC,BH,CH ?
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