Dilations Review

Front

What is a dilation in geometry?

Back

A dilation is a transformation that alters the size of a figure but keeps its shape and proportions the same.

Front

What is the scale factor in a dilation?

Back

The scale factor is a number that describes how much a figure is enlarged or reduced during a dilation.

Front

If the scale factor is greater than 1, what type of dilation is it?

Back

Enlargement.

Front

If the scale factor is less than 1, what type of dilation is it?

Back

Reduction.

Front

What is the algebraic representation of a reduction?

Back

Front

What is the algebraic representation of an enlargement?

Back

Front

How do you find the scale factor between two similar figures?

Back

Front

Are dilations considered similar figures?

Back

Yes, dilations produce similar figures.

Front

What happens to the angles of a figure during a dilation?

Back

The angles remain unchanged.

Front

What happens to the lengths of the sides of a figure during a dilation?

Back

The lengths of the sides are multiplied by the scale factor.