If a right circular cylinder of height 14 is inscribed in a sphere of radius 8

If a right circular cylinder of height 14 is inscribed in a sphere of radius 8, then the volume of the cylinder is

  1. 110
  2. 220
  3. 440
  4. 660

Solution

DC is diameter of the cylinder.

∠ADC = 90°

AC is the diameter of the sphere.

Thus, AC = 16 and AD = height of the cylinder = 14

DC2 = 162 – 142 = 60

If the radius of cylinder is r,

r2 = 60/4 = 15

Volume of cylinder = πr2h = π × 15 × 14 = 660

The correct option is D.