The radius & the height of a right circular cone are in the ratio 5 : 12. Its curved surface area is 816.4cm2. What is the volume (cm3) of the cone?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 2512.
Given: 
CSA of cone = πrl
Radius = 10 , Height = 24 , l = 26
Volume of cone = 1/3 x 3.14 x 100 x 24 = 314 x 8 = 2512 cm3