What belongs in the box marked with the question mark in the proof below Statement 2 Given 3 is a right angle Prove 1 and 2 are complementary is a right angle 3 m 3 90 1 2 3 forms a straight line 1 m2 m 3 180 1 2 m m 1 m2 90 180 m 1 m 2 90 are complementary angles Substitution Property Distributive proeprty Addition Property of Equality Division property of Equality Reason Given Definition of right angles Definition of straight angles Straight angles measures 180 Nong of the other answers are correct