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 18 metres Ă 20 metres?Solution
Area of the circular field = Ď Ă radius2 = (22/7) Ă 21 Ă 21 = 1386 m2 Area of the rectangular piece of land = length Ă breadth = 18 Ă 20 = 360 m2 So, difference in area = 1386 â 360 = 1026 m2
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