Question

Find the volume. The radius is 9m.

Find the volume. The radius is 9m.

Type number only. No units. Do not round till the end. Round answer to the nearest tenth.

V = ⁉️

Answer 1

3392.9

Explanation:

A little Pythagoras first, just to show how it works:

In a right-angled triangle, a ² + b ² = c ²

41² = radius² + 40²

radius = 9

Volume of cone = (1/3) X vertical height X π r ²

= (1/3) (40) π (9) ²

= 1080π

= 3392.9 to nearest tenth