Point - Zero Dimensional- Represented by a dot. Shows an exact location., Line - One dimension. Has length but no width or height. It goes forever in opposite directions., Plane - Two dimensional flat surface. It has length and width, but no height., Line segment - Part of a line with two endpoints. , Ray - Part of a line with one endpoint and extending forever in one direction., Collinear Points - Points that lie on the same line., Coplanar Points - Points that lie on the same plane., Angle - A shape formed by two rays with a common endpoint., Parallel Lines - Lines that lie in the same plane and never meet., Perpendicular Lines - Lines that intersect and form right angles, Bisector - A point, line ray, plane etc. that divides a shape into two equal shapes, Midpoint - A point in the middle of segment that divides it into 2 equal shapes., Adjacent Angles - Angles that are beside of each other and share a common vertex, but no common interior points., Vertical Angles - Nonadjacent angles formed by two lines that intersect., Linear Pair - Two adjacent angles that form a line and are supplementary., Supplementary Angles - Two angles that add up to 180 degrees., Complementary Angles - Two angles that add up to 90 degrees., Skew Lines - Lines that do NOT lie on the same plane and never intersect., Perpendicular Symbol, Parallel Symbol, How to mark congruent segments in a diagram, How to mark congruent angles in a diagram., How to mark parallel lines in a diagram,

Introductory Points, Lines and Angles Vocabulary

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