Angle Relationships in Similar Triangles

In similar Polygons, corresponding sides are ___ and corresponding angles are ___. (Fill in the blanks)

• congruent, proportional 
• proportional, congruent 
• congruent, congruent
• proportional, proportional

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

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

Sides in similar figures must be proportional.  

• True
• False