Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 4 - Section 4.3 - The Rectangle, Square, and Rhombus - Exercises - Page 203: 27

Answer

P=176

Work Step by Step

AB$^{2}$+BC$^{2}$=AC$^{2}$ 39$^{2}$+52$^{2}$=AC$^{2}$ 1521+2704=AC$^{2}$ AC=$\sqrt {4225}$=65 CD$^{2}$=AC$^{2}$-AD$^{2}$ CD$^{2}$=65$^{2}$-25$^{2}$ CD=$\sqrt {3600}$=60 P=AB+BC+CD+DA P=39+52+60+25 P=176
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