Question

Find the cost of fencing a circular field at the rate of 50 p. per metre if its area is 138600 sq. metre.
(a) Rs. 650
(b) Rs. 660
(c) Rs. 600
(d) Rs. 400​

Answer 1

area of circular field = 138600sq. meter

pi r sq =138600

r = 138600×7/22 root under

=44100 root under

=210meter

circumference =2pi r

=2×pi ×210

=2×22×30

=1320meter

total cost =1320×50p

=66000p

660rupee

Answer 2

Answer:

660 Is The Correct Answer

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