To find:
Answer to Problem 12ST1
Explanation of Solution
Given:
The diagram:
Concept Used:
Corresponding
Postulate 10: If two parallel lines are cut by a transversal then the corresponding angles are congruent.
Alternate interior angles: These are the two non adjacent interior angles which are on the opposite sides of the transversal.
Theorem 3-2: If two parallel lines are cut by a transversal then the alternate interior angles are congruent.
Theorem 3-3: If two parallel lines are cut by a transversal then the same-side interior angles are supplementary.
Consider the given figure:
In this figure, lines
This implies that,
Similarly, lines
This implies that,
Now, lines
Chapter 3 Solutions
McDougal Littell Jurgensen Geometry: Student Edition Geometry
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