SOLUTION: angle 1 and angle 2 are supplements andle 3 and angle 4 are supplements and 1 is congruent with angle 4

Question 915784: angle 1 and angle 2 are supplements
andle 3 and angle 4 are supplements
and 1 is congruent with angle 4
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
proof:

1. < +< = =>given supplementary
2. < +< = =>given supplementary
3. < = - <=>subst postulate
4. < = - <=>subst postulate
5 <= <=>given
6 -<= -<=>substitution
7 < = <=>subtraction and multiplication postulate
.
Note: There is a Theorem that " if angles are supplements of equal angles, then the two angles "

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