Precalculus (10th Edition)

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

Chapter 1 - Graphs - 1.1 The Distance and Midpoint Formulas - 1.1 Assess Your Understanding - Page 6: 4

Answer

The converse of Pythagorean Theorem says that if $x^2+y^2=z^2$ then the triangle is a right triangle (if $z$ is the hypotenuse and $x,y$ are the other sides). Here $11^2+60^2=121+3600=3721=61^2$, hence it is a right triangle.

Work Step by Step

The converse of Pythagorean Theorem says that if $x^2+y^2=z^2$ then the triangle is a right triangle (if $z$ is the hypotenuse and $x,y$ are the other sides). Here $11^2+60^2=121+3600=3721=61^2$, hence it is a right triangle.
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