Prove: <1= <3
Complete the proof (reasons A and B).

A. Definition of supplementary angles
And Substitution property

B. Angle addition postulate
And Subtraction property of equality

C. Subtraction property of equality
And Definition of linear pair

D. Addition property of equality
And Angle addition postulate

Prove lt1 lt3 Complete the proof reasons A and B A Definition of supplementary angles And Substitution property B Angle addition postulate And Subtraction prope class=