Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 1 - Section 1.7 - Exponents and Order of Operations - Exercise Set: 99

Answer

perimeter is 180 ft

Work Step by Step

Since the figure is a rectangle with a corner notched out, we know that the 2 vertical lines on the left have a combined length equal to the length of the right side. We also know that the combined length of the 2 horizontal lines on the bottom have a combined length equal to the length of the top side. Therefore the perimeter is $60+60+30+30=180$
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