A conical military tent is 5 mt high and the diameter of the base is24 mt find the cost of canvas used in making this tent at the rate of Rs 14 per sq. mt.
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r=24/2=12m
h=5m
l=(√12^2+5^2)=(√144+25) =(√169) =13
area of canvas cloth=CSA of cone
area of canvas cloth
=πrl=22/7×12×13=489.84m^2
the cost of canvas=area of cloth×14=489.84×14=6857.76₹
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