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Topic 8 vocab pt1
Geometry
Term | Definition |
---|---|
parallel lines | Lines that never intersect or cross over eachother. |
intersecting lines | Lines that pass through the same point. |
perpendicular lines | Lines that form square corners where they meet. |
point | An exact location in space. |
Line | A straight path of points that goes on and on in two directions. |
plane | An endless flat surface. |
line segment | A part of a line with two endpoints. |
ray | A part of a line that has one endpoint and continues on forever in one direction. |
angle | A figure formed by two rays that have the same endpoint. They are given special names depending on their size. |
right angle | An angle that forms a square corner and measures 90 degrees. |
acute angle | An angle that measures less than 90 degrees and is less than a right angle. |
obtuse angle | An angle that is greater than a right angle, and is more than 90 degrees. |
straight angle | This angle forms a straight line. |