Solving Problems in Similar Triangles

Are these triangles similar?

• Yes

• No

Which triangles are similar to triangle A?

• B

• C

• Both

• None

Which triangles are similar to triangle A?

• B

• C

• Both

• None

Are the triangles similar?

• Yes

• No

Are the following similar? Why or why not?

• Yes. All pairs of corresponding angles are congruent.

• No, the corresponding angles are not equal.

• No, the ratios of the corresponding sides are not equal.

Are the triangles similar?

• Yes

• No

Are the triangles similar by angle-angle similarity?

• Yes

• No

• Maybe so

Find missing side

• 5

• 7

• 9

• 11

Sides in similar figures must be proportional.  

• True

• False 

Are these figures similar?

• yes

• no