Answer
$$r=5.0 \ inches$$
Work Step by Step
Using the equation for the area of a square and a circle, we find:
$$ \pi r^2 = s^2 \\ \pi r^2 =(8.9^2) \\ \pi r^2=79.21 \\ r^2=\frac{79.21}{\pi } \\ r=\sqrt{\frac{79.21}{\pi }} \\ r=5.0 \ inches$$
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 8.4 - Circumference and Area of a Circle - Exercises - Page 385: 49
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
