Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 7 - Review Exercises - Page 349: 32

Answer

14 inches

Work Step by Step

The radius of the circle is equal to the distance from the midpoint of a side to the incenter of the triangle. The incenter and centroid are the same point in an equilateral triangle. Therefore the radius of the circle is equal to half the length of the radius of the triangle. r=2(7) r=14
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