Dịch được như sau:
Một nửa chu vi của sân trường hình chữ nhật là 0,24 km. Chiều rộng là chiều dài. Tìm diện tích sân trong mét vuông?
Giải:
Vì chiều dài là chiều rộng nên ta có:
đổi 0,24km= 240m
Chiều rộng và chiều dài là:
240 : 2=120 (m)
Diện tích của sân trường là:
120 . 120=14 400 (\(m^2\))
Vậy:................................
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