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2022-04-17 10:38:40
thiếu: 54 x 30= 1620 ( mvuông )
2022-04-17 10:37:37
Trên thực tế, chiều dài thửa ruộng nhà em là:
36 x 1500= 54000 (mm) = 54m
Trên thực tế, chiều rộng thửa ruộng nhà em là:
20 x 1500= 30000 (mm) = 30m
Trên thực tế, diện tích thử ruộng nhà em là: