Question

The round base of a copper tea kettle has a diameter of 18 centimeters. What is the base's circumference?

Answer 1

C = 18 pi cm or approximately 56.52 cm

Explanation:

The circumference of a circle is given by

C = pi * d

We know the diameter is 18 cm

C = pi * d = 18 pi cm

If we approximate pi by 3.14

C = 3.14 * 18

C is approximately 56.52 cm