Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 1 - Tools of Geometry - Common Core Cumulative Standards Review - Selected Response - Page 78: 13



Work Step by Step

Use the formula for the area of a circle. $A=\pi r^2$ substitute $10\pi=\pi r^2$ divide each side by $\pi$ $10\pi\div\pi=\pi r^2\div\pi$ $10=r^2$ take the square root of each side $\sqrt{10}=\sqrt{r^2}$ $3.16=r$ The diameter is twice the radius. $d=2r=2(3.16)=6.32$
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.