We can identify the pairs of congruent angles by matching them using the order they appear in the similarity statement.
ccccc
W & X & Y & Z
↓ & ↓ & ↓ & ↓
Q & R & S & T
The extended proportion that relates the corresponding sides for the similar polygons is created by writing a series of ratios for the corresponding side lengths. Let's list the pairs of congruent angles and write the ratios of the corresponding side lengths in a statement of proportionality.
