Answer
It is a right angled triangle
Work Step by Step
Slope of AB = (7-5)/(3-(-1))=2/4=1/2
Slope of BC = (3-7)/(5-3)=-4/2=-2
We can see the product of slope of AB and BC is -1, hence these are the sides of a right angled triangle.
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 2 - 2.1 - Linear Equations in Two Variables - 2.1 Exercises - Page 172: 103
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