Dilations and Similar Figures Review

Front

What mathematical operation is used with the scale factor in a dilation?

Back

Multiplication

Front

When the scale factor of a dilation is less than one, what type of dilation is it?

Back

Reduction

Front

Does a dilation produce a congruent figure?

Back

No, it produces a similar figure.

Front

What do similar figures have in common?

Back

They have the same shape but different sizes.

Front

What must be true about corresponding angles in similar triangles?

Back

They are congruent.

Front

What is the scale factor in a dilation?

Back

The ratio of the length of a side of the image to the length of the corresponding side of the original figure.

Front

If a dilation has a scale factor greater than one, what type of dilation is it?

Back

Enlargement.

Front

What is the relationship between the sides of similar figures?

Back

The corresponding sides are in proportion.

Front

Can a dilation change the shape of a figure?

Back

No, it can only change the size.

Front

What is the effect of a scale factor of 1 on a figure?

Back

The figure remains unchanged.