# data[].attributes.body
Any figures related by dilation with congruent corresponding angles and corresponding side lengths related by a constant scale factor.

# data[].attributes.body
A number that, when multiplied by the side lengths of a figure, gives the corresponding side lengths of a similar figure.

# data[].attributes.body
A transformation that creates a similar figure using:

A center of dilation (fixed point)

A scale factor

# data[].attributes.body
Sides and angles that are in the same relative position; the sides and angles that would "match up" if you put one figure on top of the other.

# data[].attributes.body
Any two, or more, figures are congruent if ALL corresponding sides and angles have the same measure. Congruent figures also have the same area and perimeter and are related by one or more rigid transformations.

# data[].attributes.body
Any move that creates an image without changing the angles or side lengths of the pre-image: translations, reflections, & rotations are all rigid transformations.

# data[].attributes.body
A move that creates an image from a pre-image by flipping it over a fixed line (line of reflection).

# data[].attributes.body
A move that creates an image from a pre-image by turning it around a fixed point (point of rotation).

# data[].attributes.body
A move that creates an image from a pre-image by sliding it up, down, left, and/or right.