Similar Figures

When A(3, 6) is under a dilation of 2 what are the coordinates of A'?

• (3, 6)

• (1.5, 3)

• (6, 12)

• (12, 6)

State the coordinate of the image of the given point G (-10,-6) under a dilation with center at the origin with the given scale factor of 1/2.

• G' (5,3)

• G' (20,12)

• G' (-20,-12)

• G' (-5,-3)

A ~ B. What is the scale factor of the dilation of A to B?

• 3

• 4

A dilation is which of the following: 

• only an enlargement

• only a reduction

• Either an enlargement or a reduction

• Neither an enlargement or a reduction

When the scale factor of a dilation is less than one, the dilation is a reduction.

• True

• False

The point (8, 12) was dilated to become point (2, 3). What was the scale factor?

• ½

• ¼

• 4

• 2

Find the ratio (red to blue) of the area.

• 11/6

• 6/11

• 121/36

• 36/121

Which proportion must be true?

Which proportion must be true?

Which proportion must be true?