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Pre-Algebra Chap 1&2

Pre-Algebra Chapter 1 & 2

TermDefinition
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