Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 8 - Section 8.5 - More Area Relationships in the Circle - Exercises - Page 393: 39

Answer

A$\approx$5890.5 ft$^2$

Work Step by Step

A=$\frac{1}{4}$$\pi$R$^2$-$\frac{1}{4}$$\pi$r$^2$ A=$\frac{1}{4}$$\pi$(380)$^2$-$\frac{1}{4}$$\pi$(370)$^2$ A=36,100$\pi$-34,225$\pi$ A=1,875$\pi$ A$\approx$5890.5 ft$^2$
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.