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kieuthanhdat944
2 năm trước
Xho ∆ABC vuông tại A, có AB=5cm, AC=12cm a. Tính BC b. Trên tia đối của tia AB lấy điểm D sao cho AB=AD. Chứng minh ∆ABC=∆ADC Giúp mik với ạ mik sắp nộp rồi. C.ơn!
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