### Home > CC2MN > Chapter 10 > Lesson 10.2.1 > Problem 10-28

10-28.

Find the circumference of each of the circles described below.

Radius of

inches Recall that the circumference of a

. inches

Diameter of

cm Refer to the diagram from part (a) and recall that the

.

To get an appropriate decimal answer, roundso that it equals .