Answer
12.27 $ km^ 2 $
Work Step by Step
We know that the area is equal to:
$$A=\pi r^2 \times \frac{\theta}{360\ degrees}$$
Thus, it follows:
$$A=\pi (2.5)^2 \times \frac{225\ degrees}{360\ degrees}=12.27$$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 6 - 6.1 - Angles and Their Measure - 6.1 Exercises - Page 432: 91
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