Thinking Mathematically (6th Edition)

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

Chapter 10 - Geometry - 10.3 Polygons, Perimeter, and Tessellations - Exercise Set 10.3 - Page 636: 14



Work Step by Step

(1) The perimeter of a polygon is equal to the sum of the lengths of all its sides. (2) The opposite sides of a rectangle have equal lengths. Thus the two unknown side lengths are 7 in and 18 in. Add the lengths of all the sides to find the perimeter: perimeter = 7+7+18+18=50 in
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