Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 12 - Section 12.5 - Circles - Exercise - Page 410: 18



Work Step by Step

We use the formula for the area of a circle $A=\pi*r^{2}$ and solve for $r$ to find the radius. We have the area: $A=90ft^{2}$ thus: $A=\pi*r^{2}$ $r=\sqrt {\frac{A}{\pi}}=\sqrt {\frac{90ft^{2}}{\pi}}=5.35ft$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After 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.