Question

What's the circumference of a
circle with a diameter of 15 inches?
Use 3.14 for pi.

Answer 1

`3.14 *15 = 47.1`

OR

`15/2 = 7.5\\2*3.14*7.5 = 47.1`

Circumference = 47.1

Answer 2

47.1 inches

Explanation:

The circumference is given by

C = pi *d

=3.14 * 15

=47.1 inches