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thuhuyen13062000
2 năm trước
Cho tam giác ABC có AB<AC ,AD là phân giác góc A . Gọi M là trung điểm của BC.Từ M kẻ đường thẳng vuông góc với BC cát AD tại I.từ I kẻ IH vuông góc với AB,kẻ IK vuông góc với AC ( H thuộc AB;K thuộc AC) Kẻ hình giúp mình nhé ,chỉ kẻ hình thui .Cảm ơn
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