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linhcara284
2 năm trước
CHO TAM GIÁC ABC, TRÊN BC LẤY ĐIỂM M SAO CHO BM=1/2BC .TỪ ĐIỂM M KẺ HAI ĐƯỜNG THẲNG MP,MQ LẦN LƯỢT SONG SONG VỚI AB VÀ AC. CHỈ RA CÁC CẶP TAM GIÁC ĐỒNG DẠNG VÀ TỈ SỐ ĐỒNG DẠNG TƯƠNG ỨNG.
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