C. the radius of circular field is 77m. It is surrounded by path of uniform width of 7m as shown in th
given figure. Find
i) The area of the path
ii) the cost of cementing the path at Rs 4/m2
77 m
•Im
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Answer:
(i) 3542 m²
(ii) Rs. 14168
Step-by-step explanation:
Area of the path= Area of the Bigger circle - Area of smaller circle
=πR²-πr²
=22/7(R²-r²)
=22/7(84×84-77×77)
=22/7(1127)
=22(161)
=3542 m²
(ii) Cementing of 1 m²=4
Cementing of 3542 m²=3542×4
=Rs. 14168
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