Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 11 - Section 11.4 - Applications with Acute Triangles - Exercises: 9a

Answer

(3, 4, 5) is a Pythagorean Triple. γ lies opposite the longest side and must be a right angle.

Work Step by Step

To measure the value of r, We need to use the law of cosines Since the sides of the triangle is given. They are Pythagorean triplet $c^{2}$ = $a^{2}$ +$b^{2}$ $5^{2}$ = $3^{2}$ +$4^{2}$ 25 = 9 + 16 25 = 25
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.