ignacio wants to prove that ABC is Congruent to DCB. He says that he knows AC is congruent to DB because diagonals in rectangles are congruent. What rule can he use to prove that BC is congruent to BC

Question

the Distributive Property
the Pythagorean Theorem
the HL Theorem
the Reflexive Property

Answer 1

To prove that triangle ABC is congruent to triangle DCB, Ignacio can use the Reflexive Property to show that side BC is congruent to itself. The Reflexive Property states that any geometric quantity is equal to itself, which is crucial in triangle congruence proofs.

So the correct answer is the Reflexive Property.