Triangle similarity

When the dilation has a scale factor greater than one, the dilation is an enlargement.

• True

• False

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

• True

• False

• enlargement

• reduction (shrink)

What scale factor was used to produce the image?

• 2
• -2
• ¹/₂
• 1

Find the measure of x:

• 6
• 24
• 33
• 36

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

• (5,3)
• (20,12)
• (-20,-12)
• (-5,-3)

State the postulate that proves these triangles are similar.

• AA~

• SAS~

• SSS~

• AAS~

State the postulate that proves these triangles are similar.

• SSS~

• SAS~

• AA~

• Not similar

State the postulate that proves these triangles are similar.

• AA~

• SAS~

• SSS~

• Not Similar