click below
click below
Normal Size Small Size show me how
Geometric Figures
Vocabulary for Geometric Figures Unit Grade 7
Term | Definition |
---|---|
Acute Angle | An angle that measures less than 90 degrees, but greater that 0 degrees. |
Adjacent Angles | Two angles created by intersecting lines and share a common ray. |
Angle | Two rays that meet at a common point. |
Complementary Angles | A pair of angles whose sum is 90 degrees. |
Congruent Angles | Two angles that have equal degree measure. |
Corresponding Angles | Angles that are in the same positions of different intersections created by a transversal intersecting two or more parallel lines. |
Equilateral Triangle | A triangle that has all sides of equal length. |
Intersecting Lines | Two lines that meet at a point. |
Isosceles Triangle | A triangle that has at least two sides of equal measure. |
Line | A one dimensional figure that does on forever in two directions. |
Line Segment | A one dimensional figure with two endpoints. |
Acute Triangle | A triangle that has three acute angles. |
Obtuse Angle | An angle that measures greater than 90 degrees, but less than 180 degrees. |
Obtuse Triangle | A triangle that has one obtuse angle. |
Parallel Lines | Two lines that in the same plane that will never intersect. |
Perpendicular Lines | Two lines that intersect forming four right angles. |
Plane | A two dimensional (flat) surface that extends forever. |
Point | An exact location in space. |
Ray | A one dimensional figure that has one endpoint and goes on forever in one direction. |
Right Angle | An angle that measures exactly 90 degrees. |
Right Triangle | A triangle that has one 90 degree angle. |
Scalene Triangle | A triangle that has no sides of equal length. |
Straight Angle | An angle that measures exactly 180 degrees. |
Supplementary Angles | A pair of angles whose sum is 180 degrees. |
Transversal | A line that cuts through two or more parallel lines. |
Vertical Angles | Two angles created by intersecting lines that are equal in measure, but do not share a common ray. |