Question

how many metre of cloth 1.1 M wide will be required to make a conical tent whose vertical height is 12 m and base radius is 16cm. find also the cost of the cloth used if the rate of Rs 14 per metre square

Answer 1

 

Best answer

h = 12m

r = 16m

∴ Cost of the cloth used @ Rs 14 per metre = Rs 6400/7 × 14 = Rs 12800