Question

The following hemisphere has a radius of 8cm.

Find the volume of the hemisphere correct to 1 decimal place.

Volume of a sphere= 4/3 π r3

Pls help! I'm Stuck

Answer 1

1072.3 cm³ (1 dp)

Explanation:

A hemisphere is half a sphere.

Therefore, calculate the volume of a sphere with radius 8 cm, then half it.

Volume of a sphere = 4/3 π 8³

= 4/3 × π × 512

= 2048/3 π cm³

Volume of hemisphere = (2048/3 π) ÷ 2

= 1024/3 π

= 1072.3 cm³ (1 dp)