#### 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$

Published by
Brooks Cole

ISBN 10:
1439047901

ISBN 13:
978-1-43904-790-3

1 inch

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