## Precalculus (6th Edition) Blitzer

Published by Pearson

# Chapter 4 - Section 4.1 - Angles and Radian Measure - Exercise Set - Page 532: 11

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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