Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 10 - Geometry - 10.4 Area and Circumference - Exercise Set 10.4 - Page 647: 17

Answer

C = 12$\pi$ $\approx$37.7 yd A = 36$\pi$ $yd^{2}$ $\approx$ 113.1 $yd^{2}$

Work Step by Step

Given d = 12 yd Formula for circumference of a circle: C = $\pi$d = $\pi$ x 12 = 12$\pi$ = 37.7 yd Formula for Area of a circle: A = $\pi$ $r^{2}$ =$\pi$ $6^{2}$ = 36$\pi$ $yd^{2}$ =113.1 $yd^{2}$
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