In the figure, ∠1 ≅ ∠2, ∠3 ≅ ∠4, and . You can justify the conclusion that ∠TKL ≅ ∠TLK by stating _____
that complements of congruent angles are congruent.
the SAS Postulate.
the HL Theorem.
that supplements of congruent angles are congruent.
