Similarity and Congruence Figure

Are these triangles similar?

• Yes

• No

The pair of figures is similar. Find the missing side.

• x = 12

• x = 3

• x = 40

• x = 4

Are the triangles similar? Explain.

• No, because only one angle of the triangles is congruent.

• Yes, because two of the angles are congruent.

• No, because only one triangle has a right angle.

• Not enough information to determine.

• 4m
• 5m
• 3m
• 4.5m

4m 5m 3m 4.5m

• 4m

• 5m

• 3m

• 4.5m

Are the triangles similar? If so, what is the scale factor from ΔDEF to ΔABC?

• Yes. 1.5

• Yes. ⅔

• Yes. 2

• No.

What does congruent mean?

• corresponding sides and angles are congruent

• corresponding sides are proportional and corresponding angles are congruent

• sames shape

• neither sides or angles are congruent

What side corresponds to ED?

• TA

• NA

• TN

• RD

Are the triangles congruent, if yes, why?

• SSS

• SAS

• ASA

• Not Congruent

Which of the following is not a valid reason to prove congruent triangles?

• SSA

• ASA

• SAS

• SSS