Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 1 - Tools of Geometry - 1-8 Perimeter, Circumference, and Area - Practice and Problem-Solving Exercises - Page 65: 36

Answer

Perimeter

Work Step by Step

Fencing goes around the outside, or perimeter of a yard. It does not cover the entire yard. Therefore, it would be smarter to use the perimeter of the backyard than the area when determining how much fencing to buy.
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