Dilations

Front

What is a dilation in geometry?

Back

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

Front

What does a scale factor of 1/2 indicate in a dilation?

Back

The figure will be reduced to half its original size.

Front

What is the result of dilating a figure by a scale factor greater than 1?

Back

The figure will be enlarged.

Front

What is the term for the original figure before a transformation?

Back

Pre-image.

Front

What is the term for the figure after a transformation has occurred?

Back

Image.

Front

If point A(4, 6) is dilated by a scale factor of 2, what are the coordinates of the dilated point?

Back

(8, 12).

Front

True or False: A dilation produces a congruent figure.

Back

False.

Front

If a point (x, y) is dilated by a scale factor of k, what are the new coordinates?

Back

(kx, ky).

Front

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

Back

The angles remain the same.

Front

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

Back

1/4.