A circular garden with radius 42 m is surrounded from outside by a path of 3.5 m wide. Find the cost to pave the stones on the path at the rate of Rs. 20 per m2.
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here your answer mate ☺️☺️☺️☺️
Answer:
Internal radius = 21 m, External Radius
= 21 + 3.5 = 24.5 m
Area of path = π (24.5)2 - π (21)2
= π [(24.5)2 - (21)2]
= 500.5
Cost of travelling = 500.5 × 4 = 2002
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The answer is given in the pic
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