Question

if the ratio of radius and the slant height of a cone is 1: 2 and its curved surface area is 308 cm² find the radius of the cone​

Answer 1

Step-by-step explanation:

let r and l X

CSA =308

πrl=308

22/7×x×2x=308

3x=308×7/22

3x=98

X=98/3

X=32.67

Answer 2

Answer:

πrl=308

22/7 ×1X×2X=308

x^2=308×7)/22×2=77×7)/11=7×7

X=✓7×7=7cm

Radius=7cm