Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 1 - Tools of Geometry - 1-8 Perimeter, Circumference, and Area - Practice and Problem-Solving Exercises - Page 64: 10

Answer

$C=15\pi$ cm

Work Step by Step

The formula for the circumference of a circle is $C=\pi d$ The circle shown has a diameter of $15$ cm. We plug this value into the formula and simplify: $$C=π\times15=15π$$. The problem tells us to leave the answer in terms of $π$.
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