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2022-05-09 22:07:48
Nửa chu vi mảnh vườn là:
150 : 2 = 75 (m)
Tổng số phần bằng nhau là:
3 + 2 = 5 (phần)
Chiều rộng mảnh vườn là:
75 : 5 x 2 = 30 (m)
Chiều dài mảnh vườn là:
75 - 30 = 45 (m)
Diện tích thửa ruộng hình chữ nhật là:
30 x 45 = 1350 (m2)
Diện tích mảnh vườn không kể lối đi là
(30- 2-2) x(45 -2-2) = 1066 (m2)
Diện tích đường đi là:
1350 - 1066 = 284 (m2)