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Pre Algebra Geometry Basics Parallel Lines and Transversals

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adjacent angles
two angles in a plane that have a common vertex and a common side but no common interior points
alternate interior angles
the inside angles on opposite diagonal sides of a transversal crossing two parallel lines
alternate exterior angles
the outside angles on opposite diagonal sides of a transversal crossing two parallel lines
corresponding angles
the angles that lie in the same position or "match up" when a transversal crosses two parallel lines
line
a collection of points arranged in a straight path that extends without end in both directions
parallel lines
coplanar lines that never intersect
transversal
a line that intersects two or more lines in a plane