What is the volume of largest sphere which is perfectly fits in a cylinder of radius 7 cm and height 20 cm?

1437.33 cm³

The radius of the largest sphere inside the cylinder = radius of cylinder.

Therefore,

radius of cylinder = 7 cm

Volume of cylinder = \(\frac{4}{3}\)\(\pi \) (r)³ =\(\frac{4}{3}\) × \(\frac{22}{7}\) × (7)³ = \(\frac{4}{3}\) × 22 × 49 = 1437.33 cm