Dilations and Scale Copies Review

Front

What is the scale factor in dilations?

Back

The scale factor is the ratio of a length of the new figure to the corresponding length on the original figure.

Front

True or False: A dilation produces a congruent figure.

Back

False

Front

True or False: An image is dilated at a scale factor of 1.5, meaning the dilation is an enlargement and the dilated image will be bigger.

Back

True

Front

What is the scale factor from ΔABC to ΔDEF if the lengths are doubled?

Back

2

Front

Which of the following is a scaled copy of figure A? (Options: B, C, D)

Back

D

Front

What does it mean for a figure to be a scaled copy?

Back

A scaled copy is a figure that is similar to another figure but is either enlarged or reduced in size.

Front

Define 'enlargement' in the context of dilations.

Back

Enlargement is when the scale factor is greater than 1, resulting in a larger figure.

Front

Define 'reduction' in the context of dilations.

Back

Reduction is when the scale factor is less than 1, resulting in a smaller figure.

Front

What is the center of dilation?

Back

The center of dilation is a fixed point in the plane about which all points are expanded or contracted.

Front

If a figure is dilated by a scale factor of 1/2, what type of transformation occurs?

Back

A reduction occurs, making the figure smaller.