Dilations and scale factor

Front

What is the scale factor from the small shape to the big shape?

Back

2

Front

Sides that are in the same position are called

Back

Corresponding Sides

Front

If the scale factor is less than one, the new figure will be

Back

a reduction

Front

If the scale factor is greater than one, the new figure will be

Back

an enlargement

Front

Scale factor from ΔDEF to ΔABC?

Back

1/2

Front

Which is an example of a reduction? Options: k = 1/2, k = 1, 3:2, 250%

Back

k = 1/2

Front

Which is an example of an enlargement? Options: k = 1/2, k = 1, 2:3, 2.5

Back

2.5

Front

The point (8, 12) was dilated to become point (2, 3). What was the scale factor? Options: ½, ¼, 4, 2

Back

¼

Front

Dilations (in mathematical terms)

Back

to make larger or smaller

Front

In a dilation, what mathematical operation is used with the scale factor? Options: addition, subtraction, multiplication, division

Back

multiplication