12/11/24_4A_Drill #14

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, a quantity. In geometry, it is used to determine how much a figure is enlarged or reduced.

Front

If the scale factor is greater than 1, what type of transformation occurs?

Back

An enlargement occurs.

Front

If the scale factor is less than 1, what type of transformation occurs?

Back

A reduction occurs.

Front

What does dilation mean in geometry?

Back

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

Front

True or False: A dilation produces congruent figures.

Back

False. A dilation produces similar figures, not congruent figures.

Front

How do you find the scale factor when dilating a point?

Back

Divide the coordinates of the image point by the coordinates of the original point.

Front

What are the coordinates of point A(3,3) after a dilation by a scale factor of 3?

Back

A'(9,9) because you multiply each coordinate by 3.

Front

What happens to the dimensions of a figure when it is dilated by a scale factor of 1/2?

Back

The dimensions of the figure are reduced to half their original size.

Front

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

Back

The scale factor is 1/4.

Front

What is the effect of a scale factor of 2 on a figure?

Back

The figure is enlarged to twice its original size.