Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 10 - Quadratic Equations - Chapter 10 Review Problem Set - Page 468: 31


$6\sqrt{2} $

Work Step by Step

Regardless of whether or not it is a right triangle, the legs of an isosceles triangle are $\frac{\sqrt{2}}{2} $ as long as the hypotenuse. Thus: $ l = 12 \times \frac{\sqrt{2}}{2} = 6\sqrt{2}$
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