Answer
400
Work Step by Step
Use the formula to calculate the volume to find x.
v = $4x^2=576$
$x^2=144$
x = 12
Use x and the area of a square to find the area of the material.
$(4+x+4)^2=(4+12+4)^2=20^2=400$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 1 - 1.4 - Quadratic Equations and Applications - 1.4 Exercises - Page 111: 108
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