Question
What is the difference between (in m2) the
area of a circular field of radius 28 metres and area of a rectangular piece of land having its dimensions as 40 metres × 50 metres?Solution
Area of the circular field = π × radius2 = (22/7) × 28 × 28 = 2464 m2 Area of the rectangular piece of land = length × breadth = 40 × 50 = 2000 m2 So, difference in area = 2464 – 2000 = 464 m2
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