The inner circumference of a circular tra
Icular track is 176 m. The track is 7 m wide. Calculate the:
(a) area of the track.
nh) cost of putting up a fence along the outer circle at the rate of 12 per metre.
(Use r = 22/7
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Answer:
Radius of inner circle=176/2*7/22=28m
Radius of outer circle=35m
Area of path=22/7*35*35-22/7*28*28 =1386m^2
Total Cost=2×22/7×35×12=2640 rupees
4.4
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