Question

Work out the circumference of this circle.

Give your answer in terms of and state its units.
14 cm

Answer 1

if d = 14 cm ----> r = d/2

hence, circumference of a circle is:

`c = 2\pi \: r \\ c = 2 * \pi * (14)/(2) = 14\pi \: cm`

and its unit is centimeters or cm