Question

the radius and slant height of a cone are in the ratio 2:7 and is curved surface area is 308cm2. Find it's radius.​

Answer 1

$answer$

πrl=308

22/7 ×1X×2X=308

x^2=308×7)/22×2=77×7)/11=7×7

X=✓7×7=7cm

Radius=7cm

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