∠W and ∠V are supplementary and ∠X and ∠V are supplementary. Complete the proof that ∠W≅∠X. Statement Reason 1 ∠W and ∠V are supplementary Given 2 ∠X and ∠V are supplementary Given 3 m∠W+m∠V=180° Definition of supplementary angles 4 m∠X+m∠V=180° Definition of supplementary angles 5 m∠W+m∠V=m∠X+m∠V Algebra Reflexive Property of Congruence Reflexive Property of Equality Substitution Transitive Property of Congruence Transitive Property of Equality 6 m∠W=m∠X Algebra 7 ∠W≅∠X Definition of congruence