Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 8 - Geometry - 8.5 Triangles - 8.5 Exercises: 19



Work Step by Step

It is not possible for a triangle to have two right angles. The measure of a right angle is 90$^{\circ}$. Therefore, two right angles would equal 180$^{\circ}$. Since the sum of all three angles in the triangle should equal 180$^{\circ}$ it makes this impossible since the sum would already be 180$^{\circ}$ before the addition of the third angle.
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