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Perpendicular Lines

Author: Leif Park Jordan

Perpendicular Lines and Adjacent Congruent Angles

This video presents how if two lines intersect to form adjacent congruent angles, then the lines are perpendicular.

Complementary Adjacent Angles

This video presents how if two sides of adjacent acute angles are perpendicular, then the angles are complementary.

Practice Problems

This video provides examples that demonstrate how to use these theorems about perpendicular lines to make logical arguments, as well as solve for unknown variables and angles.