Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10:
ISBN 13:

Chapter 7 - Section 7.2 - Concurrence of Lines - Exercises - Page 326: 41

Answer

3

Work Step by Step

First, we find the altitude: $h = \sqrt{10^2 - 6^2} = \sqrt{64} = 8 $ We know that the point where the radius is represents 1/3 of the height. Thus: $ r = 8 \times (1/3) = 2.67 \approx 3$
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