Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 1, Equations and Inequalities - 1.1 Apply Properties of Real Numbers - 1.1 Exercises - Mixed Review - Page 9: 75



Work Step by Step

Perimeter is the length of the outline of a shape. We can calculate it by summing up all the sides of the triangle. We are given 2 sides with a length of 9 cm, so we will label them as side $b$, and 1 side with a length of 14 cm which we will label as side $a$ therefore $P=a+2b=14+(2\times9)=14+18=32$
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