The base radius of a right cylindrical cup is 3 cm and its height 8 cm

1.	The base radius of a right cylindrical cup is 3 cm and its height 8 cm. The cup is filled with water by the half of its height. Find the volume of water in the cup.
Answer» Given, Base radius (r) = 3 cm Height (h) = 8 cm Volume of right cylindrical cup = πr²h = π × (3)² × 8 = 72 π cm³ Volume of water in the cup = \(\frac { 72\pi }{ 2 } \) = 36 π cm³

The base radius of a right cylindrical cup is 3 cm and its height 8 cm. The cup is filled with water by the half of its height. Find the volume of water in the cup.

Answer»

Given,

Base radius (r) = 3 cm

Height (h) = 8 cm

Volume of right cylindrical cup = πr²h

= π × (3)² × 8

= 72 π cm³

Volume of water in the cup = \(\frac { 72\pi }{ 2 } \)

= 36 π cm³