#### Answer

a = 12.123, 7.877

#### Work Step by Step

$A=\pi a(20-a)$ (Area A=300)
$300 = \pi a(20-a)$
$300/\pi = 20a - a^2$
$a^2-20a-300/\pi=0$
Use the quadratic formula to find the roots of the quadratic equation that are
a = 12.123, 7.877

Published by
Cengage Learning

ISBN 10:
9781337271172

ISBN 13:
978-1-33727-117-2

a = 12.123, 7.877

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.