Cho tam giác ABC cân t?i A có AB = AC = 13cm, BC = 10 cm, k? AH \perp BC. a) V? hình (0,5 ?i?m) b) Ch?ng minh \(\triangle ABH = \triangle ACH\) c) Tính ?? dài AH
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Then, we draw a line segment AC of the same length, starting from point A. Show more…
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