một thửa ruộng hình thang có đáy lớn là 55m ,đáy nhỏ bằng 3/5 đáy lớn,chiều cao bằng trung bình cộng hai đáy Tính diện tích thửa ruộng đó Biết rằng cứ 100 m ² thì thu hoạch được 65kg thóc. Hỏi trên thửa ruộng đó người ta thu hoạch được bao nhiêu tạ thóc? làm giùm mk nhanh nhé mk đang cần gấp

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