Dilations

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 the scale factor (SF) indicate in a dilation?

Back

The scale factor indicates how much a figure is enlarged or reduced during a dilation.

Front

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

Back

It is a reduction.

Front

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

Back

It is an enlargement.

Front

What are similar figures?

Back

Similar figures are figures that have the same shape but different sizes.

Front

What is the scale factor if a figure is enlarged from a size of 3 to a size of 6?

Back

The scale factor is 2.

Front

What is the scale factor if a figure is reduced from a size of 4 to a size of 2?

Back

The scale factor is 1/2.

Front

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

Back

Divide the length of a side of the image by the length of the corresponding side of the original figure.

Front

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

Back

The angles remain the same during a dilation.

Front

If point A (8, 12) is dilated to point A' (2, 3), what is the scale factor?

Back

The scale factor is 1/4.