Question

A circle has a radius of 5 cm. What is its circumference?

Use 3.14 for 7, and do not round your answer. Be sure to include the correct unit in your answer.
cm
5 cm

Answer 1

C=31.4

Explanation:

Formula: C=2πr

Insert radius: C=2×π×5

Multiply: C=10*π

Insert Pi: C=10*3.14

Multiply Again: C=31.4