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Pre-Algebra Chap 1&2
Pre-Algebra Chapter 1 & 2
| Term | Definition |
|---|---|
| Literal Equation | An equation that has two or more variables |
| Congruent Figures | Figures that have the same size and the same shape |
| Corresponding Angles | Matching angles of two congruent figures △ △ ABC DEF |
| Corresponding Sides | Matching sides of two congruent figures |
| Transformation | This changes a figure into another figure. |
| Image | The new figure formed by a transformation |
| Translation | A transformation in which a figure slides but does not turn; Every point of the figure moves the same distance and in the same direction. |
| Reflection | A transformation in which a figure is reflected in a line called the line of reflection; A reflection creates a mirror image of the original figure. |
| Line of Reflection | A line that a figure is reflected in to create a mirror image of the original figure |
| Rotation | A transformation in which a figure is rotated about a point called the center of rotation; The number of degrees a figure rotates is the angle of rotation |
| Center of Rotation | A point about which a figure is rotated |
| Angle of Rotation | The number of degrees a figure rotates |
| Similar Figures | Figures that have the same shape but not necessarily the same size; Two figures are similar when corresponding side lengths are proportional and corresponding angles are congruent. |
| Dilation | A transformation in which a figure is made larger or smaller with respect to a fixed point called this |
| Center of dilation | A point with respect to which a figure is dilated |
| Scale Factor | The ratio of the side lengths of the image of a dilation to the corresponding side lengths of the original figure |
Created by:
jkuecker