Question

Curved surface area of a cone is 308 cm2 and it's slant height is 14 cm find1)radius of the base 2)total surface area of the cone

Answer 1

Answer:

Step-by-step explanation:

csa of cone =  308cm^2

l = 14cm

$\pi$ r l = 308

 22/7 r l   =   308

22/7* r *14  = 308

r = 308/44

r= 7 cm

tsa of cone = pi*  l ( l+ r)

22/ 7 *  14 * (14 + 7)

44 * 21

924 cm^2

Answer 2

1.C.S.A=πrl
308cm²=22/7*r*14
308*7/22*14= r
7cm=r
2.T.S.A=πr(l+r)
=22/7*7(14+7)
=464cm²