Answer:
below ==>
Step-by-step explanation:
Given -> A statement already shown above the table with statements
Def. of Sup. Angles -> Supplementary angles add up to 180 degrees
Def. of Right Angle -> An angle that is 90 degrees
Substitution -> Plugging in values into an unknown variable
Congruent Complements Theorem -> if two angles are parts of the same angle, then the two angles are congruent.
Angle Addition Postulate -> When 2 angles add up to 180 degrees on a straight line
Def. of Complementary Angles -> When angles add up to 90 degrees
