Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 11 - Section 11.2 - The Cosine Ratio and Applications - Exercises - Page 511: 19


$a=5$ cm $b=5$ cm

Work Step by Step

$\cos45=\frac{b}{5\sqrt2}$ $5\sqrt2\times\cos45=b$ $b=5$ $\sin45=\frac{a}{5\sqrt2}$ $5\sqrt2\times\sin45=a$ $a=5$
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.