Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10: 9781285195698
ISBN 13: 978-1-28519-569-8

Chapter 7 - Review Exercises - Page 339: 32


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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