a non-rigid transformation in which the pre-image and image of a figure are similar
dilation
a correspondence between a figure and a slide image of the figure
translation
The original figure, before it has been transformed
Preimage
a figure in a plane has _______ ________ if the figure can be mapped onto itself by a rotation of 180 degrees or less
rotational symmetry
a rigid transformation in which a figure is turned about a fixed point
rotation
a type of transformation in which the size or shape, or both the size and shape, of the preimage changes
non-rigid transformation
A tiling of a plane with figures that leave no gaps or overlaps
tesselation
a figure in a plane has a _____ __ _____ if the figure can be mapped onto itself by a reflection in the line
line of symmetry
Size changes, congruence transformations, and combinations of these are ______ transformations
similarity
the new figure which has been transformed using a motion-rule on each point of the image
image
two objects are ______ if they have the same shape, or one has the same shape as the mirror image of the other. (More precisely, one can be obtained from the other by uniformly scaling, possibly with additional translation, rotation and reflection.)
similar
a transformation in which the preimage maps onto a congruent image
rigid transformation
a rigid transformation that preserves length, angle measure, parallel lines, and distance between points
isometry (or congruence transformation)
the operation that maps the preimage onto the image
transformation
two figures or objects are _____ if they have the same shape and size, or if one has the same shape and size as the mirror image of the other.
congruent