Question

A conical tent is 10 m high and the radius of its base is 24m. Find 
(i) slant high of the tent
(ii) cost of the canvas required to make the tent,if the cost of 1 m^2 canvas is Rs 70.



(ii) cost of h

Answer 1

1)l²=h²+r²
=24²+10²
l²=676
l=26cm
2)surface area of come=SA=πrl
=22/7 *24*26
so,
cost=SA 8rate=22/7*24*26*70
ans....=137280R.S.

Answer 2

1)slant height = l = $\sqrt{h^2+r^2}$
     l = √(24²+10²) = 26 m
2)so total surface area of tent is πrl = π x 24 x 26 = 1959.36 m²
so cost = 1959.36 x 70 = 137155.2