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Geometry Ch 9 Vocab

Dilation a transformation that enlarges or reduces the pre-image proportionally
Image the resulting figure after the transformation
Isometry a transformation where the pre-image and image are congruent
Pre-Image the original figure to be transformed
Reflection a transformation that flips a figure over a line
Rotation turning a figure around a point with a specific angle and in a specific direction
Transformation an operation that maps an original geometric figure onto a new figure
Translation a transformation that slides all points of a figure the same distance in the same direction
Symmetry when a figure can be mapped onto itself using an isometry
Vector a segment representing a quantity that has both magnitude and direction
Created by: ckelley3810