Question

the outer diameter of a spherical shell is 10cm and the inner diameter is 9cm. Find the volume of the metal contained in the shell. please solve fast

Answer 1

Answer:

142.952sqcm is my answer

Answer 2

Given - Outer and inner diameter

Find - Volume of metal

Solution - The volume of metal contained in the shell is 159.69 centimetre³

The volume of metal contained in the shell is calculated using the formula - 4/3π(R³ - r³). In the formula, R refers to the outer radius and r refers to the inner radius.

Outer radius = 10/2

Outer radius = 5 centimetres.

Inner radius = 9/2

Inner radius = 4.5 centimetres

Keep the values in the formula to find the volume of metal.

The volume of metal = 4/3*3.14*(5³ - 4.5³)

The volume of metal = 4/3*3.14*(125 - 91.125)

The volume of metal = 159.69 centimetre³

Thus, the volume of metal contained in the shell is 159.69 centimetre³