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Lipnguyen
2 năm trước
Cho tam giác HIK có IH=IK gọi E là trung điiểm của HK Chứng minh a) Vẽ hình viết giả thiết kết luộn b) Tam giác HIE = Tam giác KIE c) IE là tia phân giác của góc I d) IE vuông góc HK giúp mk vs nhanh vs ạ đề thi của mk
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