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: 35

Answer

Perimeter

Work Step by Step

Unlike wallpaper, which covers the entire wall, the crown molding is only meant to cover the outside of the ceiling. Therefore, we would need to know the perimeter of the ceiling, not the area, when determining how much crown molding to buy.
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