Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Appendix A - Review - A.2 Geometry Essentials - A.2 Assess Your Understanding - Page A19: 19

Answer

right triangle; hypotenuse $=5$.

Work Step by Step

The triangle is right if its sidelengths satisfy the Pythagorean Theorem.formula $c^2=a^2+b^2$ where $c$ is the length of the hypotenuse (longeset side). The lengthsThe given sides are $a=3,b=4$ and $c=5$ Substitute all the values into the formula above to obtain:. $(5)^2=(3)^2+(4)^2$ $25=9+16$ $25=25$ Both sides are equal. Hence, the triangle is right. The hypotenuse is the longest side of a right triangle. Hence, the hypotenuse is $5$.
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