Concept explainers
To complete: the proof that if two lines are perpendicular, then they form congruent adjacent
Answer to Problem 1CE
Explanation of Solution
Given information:
The lines l andn are perpendicular to each other.
The lines l andn are perpendicular. Perpendicular lines form right angles. So, by the definition of right angles all the angles are 90 degrees.
As all angles are 90 degrees, so they are the same. By the definition of congruent angles, angles 1,2,3 and 4 are congruent angles.
Chapter 2 Solutions
McDougal Littell Jurgensen Geometry: Student Edition Geometry
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