   Chapter 2.2, Problem 27E ### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698

#### Solutions

Chapter
Section ### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698
Textbook Problem
1 views

# In Exercises 23 to 34, give the indirect proof for each problem or statement.If two angles are not congruent, then these angles are not vertical angles.

To determine

To check:

If two angles are not congruent, then these angles are not vertical angles.

Explanation

Given:

The given statement is,

If two angles are not congruent, then these angles are not vertical angles.

But,

If two angles are vertical angles, then these are congruent angles.

Approach:

Consider two angles A and B.

Assume that, A and B are vertical angles.

From the above stated concept,

A and B are congruent angles

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