Elementary Geometry for College Students (7th Edition) Clone

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 8 - Section 8.4 - Circumference and Area of a Circle - Exercises - Page 383: 7a

Answer

radius = 5 in diameter = 10 in

Work Step by Step

The area of the circle = 25$\pi in^{2}$ The area A of a circle whose radius has length r is given by A = $\pi r^{2}$cm 25$\pi$ = $\pi r^{2}$ 25 = $r^{2}$ r = 5 in Therefore diameter of the circle = 2r = 2* 5 = 10 in
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