Question

Alice found a silver coin with a diameter of 2 centimeters. What is the coin's circumference?

Answer 1

6.28

Explanation:

pi x 2 = 6.28*

*(rounded)

Answer 2

6.28319 cm

Explanation:

radius = 1/2 diameter

C = 2(pi)r

2(3.14)1

=6.28319