Similarity SAT Geometry

The red triangle has been dilated by a scale factor of 1/4, which triangle is it's new image? 

• green triangle 

• red triangle 

• black triangle

• none of these 

• A
• B
• C
• D

Did the image enlarge, reduce or none of the above?

• Enlarge

• Reduce

• None of the above

What scale factor was used to produce the image?

• 2.5

• 1.5

• 3.5

• 4

What are the coordinates for the center of dilation?

• (0, 0)

• (-3, -1)

• (-12, 6)

• (-3, -3)

The corresponding point for a pre- image that has one vertice at ( 2, 3) and a scale factor of 2 would be at (4, 6).

• True in all cases. It doesn't matter where the center of dilation is located. You simply multiply the coordinates by the scale factor. 

• False. You can't use the scale factor to find the coordinates of the corresponding vertice.

• True, assuming that the center of dilation is at the origin.

• False, the corresponding vertice would have coordinates of (4, 5)

The triangles are similar by...

• SAS

• AA

• ASA

• SSS

Determine whether the triangles are similar or not. If so, state how they are similar.

• Yes, by AA Similarity

• Yes, by SAS Similarity

• Yes, by SSS Similarity

• No, not similar

Are these triangles similar? If so, by what similarity theorem and what is the similarity statement?

• Yes, AA~, ΔXYZ~ΔNEW

• Yes, AAA~, ΔXZY~ΔNWE

• No, these aren't similar.

• Yes, AA~, ΔYZX~ΔNWE

How do these triangles appear to be similar?

• AA

• SAS

• SSS

• Not Similar