Answer
$11 cm = h$
Work Step by Step
$h*2h/2 = 120$
$h^2 =120$
$\sqrt {h^2} = \sqrt {120}$
$h = 10.95$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 9 - Quadratic Functions and Equations - 9-3 Solving Quadratic Equations - Practice and Problem-Solving Exercises - Page 552: 54
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