HOLUB- Dilations and Measurement

Front

How is Figure F reduced to Figure B?

Back

Multiply each side by 1/4.

Front

Definition: The figure after a transformation has occurred.

Back

Image.

Front

The two rectangles are scale drawings. What is the measurement of x?

Back

20.

Front

A dilation is given by the transformation (x, y) → (.75x, .75y). What type of dilation is this?

Back

Reduction.

Front

If your SF=6/5, what type of dilation is it?

Back

Enlargement.

Front

What is a dilation in geometry?

Back

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

Front

What is the scale factor (SF) in a dilation?

Back

The ratio of the length of a side of the image to the length of the corresponding side of the pre-image.

Front

What does it mean if the scale factor is less than 1?

Back

The figure is reduced.

Front

What does it mean if the scale factor is greater than 1?

Back

The figure is enlarged.

Front

What is the pre-image in a transformation?

Back

The original figure before a transformation.