#### Answer

The angle has a measure of 60$^{\circ}$

#### Work Step by Step

$\frac{90-a}{180-a}$=$\frac{1}{4}$
360-4a=180-a
3a=180
a=60

Published by
Brooks Cole

ISBN 10:
1439047901

ISBN 13:
978-1-43904-790-3

The angle has a measure of 60$^{\circ}$

$\frac{90-a}{180-a}$=$\frac{1}{4}$
360-4a=180-a
3a=180
a=60

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.