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23 Cards in this Set

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Lines in the same plane which do not intersect
Parallel
Lines which share ONE point in common
Intersecting
Lines which do not lie in the same plane, do not intersect, are not parallel
Skew
Is a location in space; has no size
Point
Series of points which extends in both directions without end
Line
Is a flat surface with no thickness, extends in all directions
Plane
Part of a line with two endpoints
Line segment, or segment
Part of a line with one endpoint
Ray
Two rays with the same endpoint
Angle
Share a vertex and a side but no interior endpoints
Adjacent Angles
Have the same measure
Congruent Angles
Are formed by intersecting lines, opposite each other, congruent
Vertical Angles
Angles whose measures add up to 180 degrees
Supplementary Angles
Angles whose measures add up to 90 degrees
Complementary Anlges
A line which intersects two other lines at different points
Transversal
Lie on the same side of the transversal in corresponding positions
Corresponding Angles
Are in the same interior of a pair of lines opposite sides of the transversal
Alternate Interior Angles
Two sides are congruent
Isosceles
NO sides are congruent
Scalene
All sides are congruent
Equilateral
It has one right angle which is 90 degrees
Right
All angles are acute they are all less than 90 degrees
Acute
One _____ angle which means it's greater than 90 degrees
Obtuse