Question

What is the circumference of a circle with a radius of 9 cm?

Answer 1

`=56.52cm`

Explanation:

The formula for the circumference of a circle is
`=2 pi r`

The radius `=9 cm`

circumference `=2 pi r`

`=2 xx 3.14 xx 9`

`=6.28 xx 9`

`=56.52cm`