Similar Triangles Rules

Are the following triangles similar? If so, which similarity rule can you apply?

• Not Similar

Are the following triangles similar? If so, which similarity rule can you apply?

• Not Similar

Based on the picture, if TP=8in, then which other side length is also 8in?

• PW

• HG

• DH

• TW

Similar figures have _____ angles, but _____ sides.

• congruent; proportional

• proportional; congruent

• alternate; interior

• same; missing

Which statement about the triangles at the right is true?

• ΔABC is not similar to ΔADF

• ΔABC is similar to ΔADF

• ∠BAC is not congruent to ∠DAF

• ΔABC is congruent to ΔADF

Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar.

• AA

• SSS

• SAS

• Not similar

Are Triangle ABC and Triangle XYZ similar?

• No, corresponding angles are not congruent

• No, corresponding sides are not proportional

• Yes, corresponding angles are congruent

• Yes, corresponding sides are proportional

Solve the following problem.

Solve for x.

• x = 12

• x = 4

• x = 19

• x = 8

Are the following triangles similar? If so, which similarity rule can you apply?

• Not Similar