Unit 2: Parallel & Perpendicular Lines Vocab
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10 Terms
parallel lines
coplanar lines that never cross
perpendicular lines
Lines that intersect to form right angles
skew lines
Noncoplanar lines that do not intersect
transversal
a line that intersects two or more lines in the same plane at different points
alternate interior angles
a pair of angles, formed by a transversal intersecting two lines, that lie between the two lines and are on opposite sides of the transversal
same side interior angles
two angles that lie between the two lines and on the same side of the transversal
corresponding angles
A pair of angles which are on the same side of the transversal, one must be interior, one must be exterior, and they must be nonadjacent
alternate exterior angles
Two angles that lie outside a pair of lines and on opposite sides of a transversal
Vertical Angles
Two angles across from each other created by two intersecting lines. These angles are always equal.
Linear Pair
Two adjacent supplementary angles that form a straight line.
Note 
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