Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10: 9781285195698
ISBN 13: 978-1-28519-569-8

Chapter 8 - Section 8.2 - Perimeter and Area of Polygons - Exercises - Page 360: 15


20 $unit^{2}$

Work Step by Step

The area of any quadrilateral with perpendicular diagonals of length d1 and d2 is given by A =$\frac{1}{2}$ d1 * d2 d1 = AC= 8 d2 = BD = 5 The area of ABCD = \frac{1}{2}$ *8* 5 = 20 $unit^{2}$
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