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Tuananh3572
2 năm trước
Cho tam giác ABC có diện tích là 140m2.Nếu kéo dài đáy BC( về phía B) 5m thì diện tích tam giác tăng thêm 35m2.Tính độ dài đáy BC.Giúp mình nha😊😊😊😊😊😊😊😊😘😘😘😘😘😘😘
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