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fedor12mol
2 năm trước
Một thửa ruộng hình thang có đáy nhỏ 45,5m; đáy lớn gấp hai lần đáy nhỏ và chiều cao là 50,4m. Người ta trồng hoa trên thửa ruộng đó. Trung bình cứ 4 mét vuông thu hoạch được 30 000 đồng tiền hoa. Tính số tiền bán hoa thu hoạch được trên thửa ruộng đó.
Thích Trả lời Chia sẻ

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