
Concept explainers
The measure of the

Answer to Problem 19CE
40°
Explanation of Solution
Given information:
Formula used:
The measure of angles from 0 to 180
Calculation:
Consider the protector postulate:
Any point O between A and H is chosen.
Consider
These rays results in pairing with the real numbers from 0 to 180 in such a way that:
The line
If
From the above figure it can be observe that
Thus,
Therefore, the required angle is 40°.
Conclusion:
The required angle is 40°.
Chapter 1 Solutions
McDougal Littell Jurgensen Geometry: Student Edition Geometry
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