A hemispherical bowl is made of steel 0.25 cm thick. The inside radius

1.	A hemispherical bowl is made of steel 0.25 cm thick. The inside radius of the bowl is 5 cm. Find the volume of steel used in making the bowl.
Answer» Volume of a hemisphere = (2/3)πr³ Given, hemispherical bowl is made of steel 0.25 cm thick. The inside radius of the bowl is 5 cm. Outer radius = 5 + 0.25 cm = 5.25 cm Volume of steel used in the making of the bowl = \(\frac{2}{3}\times\)\(\frac{22}{7}\)\(\times\)(5.25³ - 5³) cm³ ⇒ Volume of steel used in the making of the bowl = 41.28 cm³

A hemispherical bowl is made of steel 0.25 cm thick. The inside radius of the bowl is 5 cm. Find the volume of steel used in making the bowl.

Answer»

Volume of a hemisphere = (2/3)πr³

Given,

hemispherical bowl is made of steel 0.25 cm thick.

The inside radius of the bowl is 5 cm.

Outer radius = 5 + 0.25 cm = 5.25 cm

Volume of steel used in the making of the bowl = \(\frac{2}{3}\times\)\(\frac{22}{7}\)\(\times\)(5.25³ - 5³) cm³

⇒ Volume of steel used in the making of the bowl = 41.28 cm³