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### 23 Cards in this Set

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• Back
 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