Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 8 - Section 8.2 - Perimeter and Area of Polygons - Exercises - Page 370: 20


18 in

Work Step by Step

As we know the area of the triangle have length of base as b and altitude of h A = $\frac{1}{2}$ * b*h Given Area = 72 $in^{2}$, base b= 8 in 72 = $\frac{1}{2}$ * 8*h h = $\frac{72}{4}$ = 18 in
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