WEEK 16: Dilations Intro-8th

Front

What is a dilation in geometry?

Back

A transformation that alters the size of a figure but not its shape.

Front

What does a scale factor of greater than 1 indicate in a dilation?

Back

It indicates an enlargement of the figure.

Front

What does a scale factor of less than 1 indicate in a dilation?

Back

It indicates a reduction of the figure.

Front

What is the term for a figure that is produced larger by a dilation?

Back

Enlargement.

Front

What is the term for a figure that is produced smaller by a dilation?

Back

Reduction.

Front

If a dilation has a scale factor of 1, what happens to the figure?

Back

The figure remains the same size.

Front

What is the center of dilation?

Back

The fixed point in a dilation from which all points are expanded or contracted.

Front

True or False: A dilation can only produce larger figures.

Back

False. A dilation can produce both larger (enlargement) and smaller (reduction) figures.

Front

What is the relationship between the original figure and the dilated figure?

Back

They are similar figures, meaning they have the same shape but different sizes.

Front

How do you determine if a dilation is an enlargement or reduction?

Back

By examining the scale factor: greater than 1 is enlargement, less than 1 is reduction.