Proportions of Similar Triangles

What is the scale factor if the triangle on the left is the original?

• 2

• 3/2

• 2/3

• 1/2

Find missing side length of the similar triangles

• 5

• 7

• 9

• 11

Sides in similar figures must be proportional.  

• True

• False 

Pick the correct Similarity Statement for the Triangles shown.

• ΔCAB ~ ΔDEF

• ΔABC ~ ΔDFE

• ΔABC ~ ΔDEF

• ΔBCA ~ ΔDEF

Which side is corresponding to 18?

• 5

• 6

• 7

• 15

State if the triangles in each pair are similar. If so, state how you know they are similar.

• Yes, AA Similarity

• Yes, SSS Similarity

• Yes, SAS Similarity

• Not Similar

State if the triangles in each pair are similar. If so, state how you know they are similar.

• Yes, AA Similarity

• Yes, SSS Similarity

• Yes, SAS Similarity

• Not Similar

State if the triangles in each pair are similar. If so, state how you know they are similar.

• Yes, AA Similarity

• Yes, SSS Similarity

• Yes, SAS Similarity

• Not Similar

_{Line AB corresponds with what line?} 

• XZ

• XY

• YZ

• YX

All angles in similar figures are congruent.  

• True

• False