Question

Figure.
What are the pairs of congruent angles?

Answer 1

∠QRS and ∠CDE are congruent.

∠RST and ∠DEB are congruent.

∠STQ and ∠EBC are congruent.

∠TQR and ∠BCD are congruent.

You can conclude the above angles are congruent because ∠R and ∠D has the same sign on their angle and so does ∠S and ∠E.

Answer 2

Answer:

angle Q,T,C, and B are right (90°)

angle D = R (from the sign)

angle E = S (from the sign)