Answer
$c = 2\sqrt 10$
Work Step by Step
Through Pythagorean Theorem, we obtain:
$2^2 + 6^2 = c^2$, which simplifies to
$4+36 = c^2$
To solve for c, take the square root of both sides:
$c = \sqrt 40 = \sqrt (4 \times 10) = 2\sqrt 10$
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 10 - Quadratic Equations - 10.1 - Quadratic Equations - Problem Set 10.1 - Page 442: 58
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