Math, asked by sakshiSharma11, 1 year ago

the inner circumference of a circular track is 170 cm the track is 7 M wide calculate the area of the Track and cost of putting up the fence along the outer circle at the rate of Rs. 12 per meter pie 22/7

Answers

Answered by apurv5
1
radius of the inner circle = x

170=2x

170=2*22/7*x

170*7 = 44x

1,190= 44x

x=1,190/44

=27.04m

27.04m is theradius of the inner circle so the radius of the outer circle will be 27.04+7=34.04m

Cost of fencing the outer circle = {circumference of the outer circle* 12}

(2*22/7*34.04}*12

{44*4.86}*12

2,566.08 RS
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