Trigonometry 7th Edition

Published by Cengage Learning
ISBN 10: 1111826854
ISBN 13: 978-1-11182-685-7

Chapter 1 - Section 1.1 - Angles, Degrees, and Special Triangles - 1.1 Problem Set: 18

Answer

B = $45^{\circ}$

Work Step by Step

In right triangle CDB- Given acute angle C = $45^{\circ}$ and B is also an acute angle. We know that acute angles of a right triangle add up to $90^{\circ}$ Therefore B + C = $90^{\circ}$ B + $45^{\circ}$ = $90^{\circ}$ B = 90 - 45 = $45^{\circ}$
Small 1478698208
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.