the inner circumferences of a circular track is 220m.the track is 7m wide everywhere calculator the cost of pebbeling the track the rate of rs 5/m2.
Anonymous:
inner circumference = 220m. 2Πr = 220m
then r = 35m
given width is 7m
so total radius = 35+7= 42m
outer circumference=2ΠR= 264
cost = 264x5
is ur answer
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