Answer
Length of playing area = $178 ft$
Work Step by Step
Area of a rectangle: $A$ = $l$$w$
We know the area and the width so we need to solve for the length.
$l$ = $A$ / $w$
$l$ = 15,130 ft$^{2}$ / 85 ft
$l$ = 178 ft
Basic College Mathematics (9th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0321825535
ISBN 13:
978-0-32182-553-7
Chapter 8 - Geometry - 8.3 Rectangles and Squares - 8.3 Exercises - Page 554: 28
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