We have,
(i) Length of the rectangular field = 125 m
Breadth of the rectangular field = 400 m
Therefore,
Area of the rectangular field = Length x Breadth
= 125 m x 400 m
= 50000 m2 = 5 hectares [Since 10000 m2 = 1 hectare]
(ii) Length of the rectangular field =75 m 5 dm = (75 + 0.5) m = 75.5 m [Since 1 dm = 10 cm = 0.1 m]
Breadth of the rectangular field = 120 m
Therefore,
Area of the rectangular field = Length x Breadth
= 75.5 m x 120 m
= 9060 m2 = 0.906 hectares [Since 10000 m2 = 1 hectare]