Question

A solid iron rod has cylindrical shape. Its height is 11 cm. and base diameter is 7 cm. Then find the total volume of 50 rods?

Answer 1

Diameter of the cylinder (d) = 7 cm 

Radius of the base (r) = 7/2 = 3.5 cm 

Height of the cylinder (h) = 11 cm 

Volume of the cylinder V = πr²h 

= 22/7 × 3.5 × 3.5 × 11 = 423.5 cm³ 

∴ Total volume of 50 rods = 50 × 423.5 cm³ 

= 21175 cm³.