Question

Find the circumference of a circle with a radius of 10 inches

Answer 1

The formula is 2πr

You have the radius which is 10

2 * π * 10

The circumference in terms of pi is 20π or if you want a number, it is approximately 62.83

Answer 2

Circumference is 2πr so you subsitute for r also the radius with 10 so you get 20π as the diameter