Question

the height of a tent is 9m.its base diameter is 24m.what is its slant height?find the cost of canvas cloth required if it cost₹14 per sq.m.

Answer 1

Diameter = 24 m

Radius = 12 m

Height = 9 m

Slant Height = l

So, l²= r²+h²

l²= 12²+9²

l²= 144+81

l² = 225

l = √225

l = 15

C.S.A of Cone = πrl

=22/7×12×15

=565.71 m²

Cost of tent = Area×Cost of 1 m²

=565.71×14

= 7919.94 Rs