Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 4 - Section 4.1 - Angles and Radian Measure - Exercise Set: 11

Answer

4 radians

Work Step by Step

The measure of the central angle θ = $\frac{length of the intercepted arc}{radius}=\frac{s}{r}.$ s = 400 centimeters = 4 meter, r = 1 meter. θ = $\frac{s}{r}$ = $\frac{4}{1}$= 4 radians.
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