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kirito172380
2 năm trước
Cho tam giác ABC vuông tại A đường cao AH biết HB= 3,6 cm, HC=6,4 cm a) Tính độ dài AB, AC, AH b) kẻ HE vuông góc AB tại E, HF vuông góc AC tại F chứng minh AE.AB= AF.AC
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