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: 88

Answer

area = $81\ cm^2$ perimeter = $36\ cm$

Work Step by Step

The area of a square is the square of the length of the sides. $9^2=81$ The perimeter of a square is the sum of the length of the sides, or 4 times the length of a side. $9\times4=36$
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