Dilations (Scale Factor)

Front

What is a dilation in geometry?

Back

A dilation is a transformation that changes the size of a figure but not its shape, using a scale factor.

Front

What does the scale factor indicate in a dilation?

Back

The scale factor indicates how much larger or smaller the new figure will be compared to the original figure.

Front

If the scale factor is greater than 1, what happens to the size of the figure?

Back

The figure becomes larger.

Front

If the scale factor is less than 1, what happens to the size of the figure?

Back

The figure becomes smaller.

Front

What is the scale factor if the new shape is smaller than the original?

Back

The scale factor is less than 1.

Front

What is the scale factor if the new shape is larger than the original?

Back

The scale factor is greater than 1.

Front

What is the scale factor if the new shape is a reflection of the original?

Back

The scale factor is negative.

Front

How do you find the new coordinates of a point after dilation?

Back

You multiply the original coordinates by the scale factor.

Front

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

Back

The angles remain the same during a dilation.

Front

What is the effect of a negative scale factor on a shape?

Back

A negative scale factor reflects the shape across the origin and changes its size.