Answer:
1) 1. given
2) 3. Definition of Right Angle
3) 6. Angle addition postulate
4) 4. Substitution
5) 7. Definition of Complementary Angles
6) 1. given
7) 5. Congruent Complements Theorem
Step-by-step explanation:
Statement one is given, so 1.
Statement two says it is 90 degrees which is what defines a right angle triangle, so 3
Statement three shows an angle addition postulate.
Statement four we are substitutioning the right angle from statement 2
Statement five we are saying that two angles are complementary, thus defining it.
Statement six is given above
Statement seven uses the Congruent complemententary theorem
