Using 3.14 for pi, find the volume of a cylinder that has a radius of 2 and a height of 7.

Correct answer to question 95 (Mathematics Knowledge): 87.92

Method

The circular base has an area of 3.14 x 2 squared = 12.56, and multiplying by the height of 7 gives 87.92. Using the radius rather than the radius squared gives 43.96.