Answer
$16\pi$
Work Step by Step
$S = 4\pi \times r^2$
By replacing the letters with their values (r=2)
We have:
$S = 4\pi \times 2^2= 16\pi$
Elementary Geometry for College Students (6th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
9781285195698
ISBN 13:
978-1-28519-569-8
Appendix A - A.2 - Formulas and Equations - Exercises - Page 540: 20
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.
