Examine the triangles at right.  

1. Are these triangles similar? If so, use a flowchart to show how you know. If they are not similar, explain how you know.

   Hint (a):

   Look at the triangles. Do any of the parts make them similar?

   Answer (a):

   They are similar by $\text{SAS}\sim$.

2. Are the triangles congruent? Explain your reasoning.

   Hint (b):

   What is the ratio of the corresponding sides?

   Answer (b):

   Yes, because they are similar and the corresponding sides have a ratio of $1$.