Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 2 - Acute Angles and Right Triangles - Section 2.4 Solving Right Triangles - 2.4 Exercises: 19

Answer

It is correct, if yo know that triangle is right-angled, you can find third angle if you know one acute angle. And only one side is all you need to find the other two sides if you know values of all angles.

Work Step by Step

1. Sum of angles in a triangle is $180^{\circ}$. 2. By sine, cosine or tangent, you can find any side if you know 1 side and one angle in right-angled triangle.
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.