Concept explainers
To state: the postulate or theorem which justifies the given statement, “
Answer to Problem 31CUR
Explanation of Solution
Given:
The diagram:
Concept Used:
Theorem 3-12: The measure of an exterior angle of a
Consider the given figure:
Consider the triangle
For the triangle
So, by theorem 3-12, the measure of the exterior angle
That is,
Chapter 3 Solutions
McDougal Littell Jurgensen Geometry: Student Edition Geometry
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