Trigonometry (10th Edition)

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

Chapter 3 - Radian Measure and the Unit Circle - Section 3.1 Radian Measure - 3.1 Exercises - Page 98: 25

Answer

Radian measure is a unit that is used to measure an angle. One full circle has a radian measure of $2\pi$ radians.

Work Step by Step

Radian measure is a unit that is used to measure an angle. One full circle has a radian measure of $2\pi$ radians. If a radius with a length of one unit rotates through an angle of $x$ radians, then the angle subtends an arc length of $x$ units.
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.