Solving with Similar Triangles

Solve for X.

• 2 ft

• 3 ft

• 4 ft

• 6 ft

Which side length corresponds with EF?

• ML

• LM

• OL

• EH

What is the length in inches of line segment PQ?

• 40 in.

• 34 in.

• 38 in.

• 14 in.

Are these two triangles similar? Which similarity criterion do you use to prove it?

• Yes, SSS

• Yes, SAS

• Yes, AA

• Not similar.

What is the similarity statement for the triangle pair?

• ΔXYZ~ΔNEW

• ΔXZY~ΔNWE

• ΔZYX~ΔENW

• ΔYZX~ΔNWE

Solving for Missing Pieces

Find side length X.

• x=15

• x=21

• x=18

• x=3

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

Are these two triangles similar? Which similarity criterion do you use to prove it?

• Yes, AA

• Yes, SAS

• Yes, SSS

• Not Similar

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

• equal

• congruent

• proportional

• none of these

Dilations-Finding the Scale Factor ABC ~ XYZ. What is the scale factor of the dilation of ABC to XYZ?

• 2

• 3