Dilations and Symmetry Practice Test

A dilation is a transformation that alters the size of a figure but not its shape, defined by a scale factor.

3/4

4

An enlargement means the figure is scaled up, resulting in a larger size, with a scale factor greater than 1.

A reduction means the figure is scaled down, resulting in a smaller size, with a scale factor less than 1.

The smallest angle of rotation that maps a shape to itself is the angle at which the shape looks the same after rotation.

An infinite number of lines of symmetry.

Rotational symmetry is when a shape can be rotated around a center point and still look the same at certain angles.

The scale factor is 3.

The scale factor is 1/2.