Question
What is the difference between (in m2) the
area of a circular field of radius 21 metres and area of a rectangular piece of land having its dimensions as 50 metres Γ 25 metres?Solution
Area of the circular field = Ο Γ radius2 = (22/7) Γ 21 Γ 21 = 1386 m2 Area of the rectangular piece of land = length Γ breadth = 50 Γ 25 = 1250 m2 So, difference in area = 1386 β 1250 = 136 m2
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