Section 5.2 Solutions To Exercises Worksheet With Answers - Uw-Madison Department Of Mathematics Page 27
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48Instructor’s Solutions Manual, Section 5.2
Exercise 27
5
27.
Suppose a slice of pizza with an angle of
radians has an area of 21
6
square inches. What is the diameter of this pizza?
solution
Let r denote the radius of this pizza. Thus
1
5
2
21 =
·
r
.
2
6
252
Solving this equation for r , we get r =
≈ 7.1. Thus the diameter of
5
the pizza is approximately 14.2 inches.
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