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, using a scale factor.

Front

What does the scale factor (SF) indicate in a dilation?

Back

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

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 are similar figures?

Back

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

Front

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

Back

Multiply the original coordinates by the scale factor.

Front

What are the coordinates of A'(3, 6) after a dilation with a scale factor of 2?

Back

(6, 12).

Front

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

Back

The angles remain the same.

Front

What is the relationship between the sides of similar figures?

Back

The corresponding sides of similar figures are in proportion.

Front

What is the effect of a dilation with a scale factor of 1?

Back

The figure remains unchanged.