Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 9 - Review - Page 686: 18

Answer

30.6

Work Step by Step

The perimeter of a triangle is the sum of the length of its sides: $11+12+7.6=30.6$
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