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Geometry Ch 9 Vocab
Term | Definition |
---|---|
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 |