Similar Triangles and Dilations

Choose the correct scale factor:

• 2.5

• 1.5

• 3.5

• 4

If two figures are similar, the corresponding angles are...

• Congruent

• Supplementary

• Proportional

• Different

The two triangles are similar. Solve for X.

• 2 ft

• 3 ft

• 4 ft

• 6 ft

What is the scale factor from triangle ABC to triangle DEF?

• 1/2

• 7/3

• 2/1

• 10/3

What is the scale factor of the dilation of ABC to XYZ?

• 2

• 3

Are these two figures congruent, similar or neither?

• Congruent

• Neither

• Similar

State the coordinate of the image of point B (-10,-6) after a dilation with a scale factor of 1/2.

• (5,3)

• (20,12)

• (-20,-12)

• (-5,-3)

If two figures are similar, the corresponding sides are ______________.

• equal

• congruent

• proportional

• none of these

Tell whether the two figures are congruent or similar.

• Congruent, because their sides are the same.

• Congruent, because their sides are proportional.

• Similar, because their sides are the same.

• Similar, because their sides are proportional.

• They are neither congruent or similar.

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

• 3

• 4