Elementary Geometry for College Students (6th Edition)

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

Appendix A - A.1 - Algebraic Expressions - Exercises - Page 535: 31


$= 10x$

Work Step by Step

Let $s =$ sum of the angles of the triangle $s = 3x + 5x + 2x$ $s = 8x + 2x$ $s = 10x$
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