Answer
$a=\frac{2A}{h}-b$
Area of a trapezoid
Work Step by Step
$A = \frac{1}{2} h(a + b) $
$2A=h(a + b) $
$a+b=\frac{2A}{h}$
$a=\frac{2A}{h}-b$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Section P.7 - Equations - Exercise Set - Page 106: 31
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