Answer
1 inch
Work Step by Step
We first find the perimeter of the rectangle:
$P = 3 +5 +6=14$
We now find the radius:
$ A = (1/2)(P)(r) \\ r = \frac{2A}{P} = \frac{2(7.48)}{14} \approx 1$
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 8 - Section 8.5 - More Area Relationships in the Circle - Exercises - Page 378: 16
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