Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 1 - Section 1.7 - Addition and Subtraction of Fractions - Exercise - Page 40: 47


The perimeter of the triangle is $2237\frac{1}{4}$ feet.

Work Step by Step

The perimeter of a triangle is equal to the sum of the lengths of its sides. Add the lengths of the three sides to obtain: Perimeter $=712\frac{3}{4} + 563 + 961\frac{1}{2} \\=(712+563+961) + (\frac{3}{4}+\frac{1}{2}) \\=2236 + (\frac{3}{4}+\frac{2}{4}) \\=2236+\frac{5}{4} \\=2236+1\frac{1}{4} \\=2237\frac{1}{4}$ Thus, the perimeter of the triangle is $2237\frac{1}{4}$ feet.
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