Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter F - Foundations: A Prelude to Functions - Section F.1 The Distance and Midpoint Formulas - F.1 Assess Your Understanding - Page 6: 4

Answer

$11^2+60^2=61^2$

Work Step by Step

According to the Pythagorean theorem, in a right-angled triangle, the sum of the square of the lengths of the shorter sides is equal to the square of the longest side, the hypotenuse. $61^2=3721$ $11^2+60^2=121 + 3600=3721$ Therefore, the triangle whose sides are of lengths 11, 60, and 61 is a right triangle.
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