Question

10. If the ratio of radius and the slant height of a cone is 1:2 and its curved su
area is 308 cm? find the radius of the cone.​

Answer 1

Answer:

ratio of radius and the slant height is 1:2

let radius and the slant height=1x,2x

c.s.a=308cm

22/7×1x×2x=304

3x2=98

x2=49

x=7cm

radius=7cm

slant height=14cm