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Geometry Terms LT 1
Question | Answer |
---|---|
Vertical Angles | Angles across from each other that are formed by two intersecting lines |
Linear Pair | Adjacent, supplementary angles |
Adjacent Angles | Angles that share a common side and vertex; angles next to each other |
Right Angle | This angle measures 90 degrees |
Acute Angle | The angle measures less than 90 degrees |
Obtuse Angle | This angle measures more than 90 degrees and less than 180 degrees. |
Straight Angle | This angle measures 180 degrees |
Congruent Angles | Any pair of angles that have the same measure |
Collinear Points | points that lie on the same line |
Coplanar | Points (at least 3) and lines in the same plane |
Point | a location in space |
Plane | a flat surface that has no thickness |
Line | Determined by 2 points. A series of points extending in opposite directions without end. |
Segment | Part of a line consisting of two endpoint sand all the points between them. |
Ray | The part of a line consisting of one endpoint and all the points on one side of the endpoint. |
Opposite Rays | Two collinear rays with the same endpoint, form a straight angle. |
Angle | Formed by two rays with the same endpoint. Named by three vertices. |
Parallel Lines | Coplanar lines that do nto intersect, have the same slope. |
Perpendicular Lines | Two lines that intersect at a right angle. |
Skew Lines | Noncoplanar lines that do not intersect. |
Intersecting Lines | Two lines meet at a point. |
Complementary Angles | Two angles whose measures add up to 90 degrees |
Supplementary Angles | Two angles whose measures add up to 180 degrees |