## Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole

# Chapter 1 - Test: 22

#### Answer

1. $\angle ABC$ is a right angle 2. $m\angle ABC=90^{\circ}$ 3. $m\angle 1 + m\angle 2=m\angle ABC$ 4. $m\angle 1 + m\angle 2=90^{\circ}$ 5. Ray BD bisects $\angle ABC$ 6. $m\angle 1 = m\angle 2$ 7. $m\angle 1+m\angle 1=90^{\circ}$ 8. $m\angle 1=45^{\circ}$

#### Work Step by Step

1. Given 2. Definition of a right angle 3. Angle addition postulate 4. Substitution property of equality 5. Given 6. Definition of Angle Bisector 7. Substitution property of equality 8. Division property of equality

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