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acekhukho
2 năm trước
Cho tam giác ABC có diện tích bằng 45cm2 . Gọi E là điểm chính giữa AB, F là điểm chính giữa AC; CE cắt BF tại D. a) Tính diện tích tam giác AEC. b) Tính diện tích tam giác BDC. giúp mk với vẽ cả hình nha hết điểm rùi đó
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