Dilations Intro

Front

What is a dilation in geometry?

Back

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

Front

What does a scale factor greater than 1 indicate?

Back

An enlargement of the figure.

Front

What does a scale factor less than 1 indicate?

Back

A reduction of the figure.

Front

If the scale factor is 1, what happens to the figure?

Back

The figure remains the same size.

Front

What is the scale factor in a dilation?

Back

The ratio of the size of the image to the size of the original figure.

Front

Is a scale factor of 2.5 an enlargement or a reduction?

Back

Enlargement.

Front

True or False: A scale factor of 1/2 reduces a figure.

Back

True.

Front

What is the result of a dilation with a scale factor of 0.75?

Back

The figure is reduced.

Front

Can dilations only enlarge figures?

Back

False, dilations can also reduce figures.

Front

What is the effect of a negative scale factor in dilation?

Back

It reflects the figure across the center of dilation and changes its size.