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$
Elementary Geometry for College Students (7th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Cengage
ISBN 10:
978-1-337-61408-5
ISBN 13:
978-1-33761-408-5
Chapter 7 - Section 7.2 - Concurrence of Lines - Exercises - Page 336: 43
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