Question

A cylindrical can holds 355 ml when full. The can is 12 cm tall. Work out the radius of the can to 2 decimal places.

Answer 1

Radius, r = 3.06 cm

Explanation:

Given that,

The volume of a cylinder, V = 355 mL = 355 cm³

The height of the can, h = 12 cm

We need to find the radius of the can.

The formula for the volume of a cylinder is given by :

`V=\pi r^2 h`

Where

r is the radius of the can

So,

`r=\sqrt{(V)/(\pi h)} \\\\r=\sqrt{(355)/(\pi * 12)} \\\\r=3.06\ cm`

So, the radius of the can is 3.06 cm.