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Butler Gr. 3 PSSA M2
Math Vocabulary Practice/ group 2
| Term | Definition |
|---|---|
| Obtuse angle | An angle with a measure more than 90 degrees. |
| Ordered Pair | A pair of numbers used to locate a point on a coordinate grid. The first number tells how far to move horizontally, and the second number tells how far to move vertically. |
| Parallel lines | Lines that never intersect and are always the same distance apart. |
| Perimeter | The distance around a figure. |
| Perpendicular lines | Two lines, segments or rays that intersect to form right angles. |
| Pictograph | A graph that uses pictures to show and compare information. |
| Ray | A part of a line that has one endpoint and continues without end in one direction. |
| Reflection (flip) | A transformation that produces the mirror image of a figure. |
| Right angle | An angle that measures exactly 90 degrees. |
| Rotation (turn) | A movement of a figure that turns that figure around a fixed point. |
| Tally chart | A table that uses tally marks to record data. |
| Translation (slide) | A movement of a figure to a new position without turning or flipping it. |
| Vertex | A point where lines, rays, sides of a polygon or edges of a polyhedron meet (corner). |
| Equation | A statement that two mathematical expressions are equal. |
Created by:
ldurns
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