
Concept explainers
a.
To use the given information to conclude that two
a.

Answer to Problem 6CE
Explanation of Solution
Given:
In Figure 1:
In Figure 2:
No pair of angles are congruent. Instead
In Figure 3:
No pair of angles are congruent.
In Figure 4:
In Figure 5:
Conclusion:
So, the conclusion is
b.
To name or state the definition or theorem that justifies the conclusions in part ( a ).
b.

Explanation of Solution
Given:
In Figure 1:
Vertically opposite angles: The angles formed opposite each other on intersection of two lines. They are always equal.
In Figure 4:
But
Linear Pair: Two angles are said to be linear pair if they are adjacent angles produced by two intersecting lines. The measure of a straight angle is
In Figure 5:
Angle Bisector: It is a line segment that divides the given angle into two halves.
Conclusion:
Therefore, the concepts used are Vertically Opposite Angles, Linear Pair and Angle Bisector.
Chapter 2 Solutions
McDougal Littell Jurgensen Geometry: Student Edition Geometry
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