Answer:
1: they are congruent and opposites. - Given
2: Same angle, just broken up - Angle Addition Property
3: Same angle, just broken up - Angle Addition Property
4: Same question as 1, congruent angles. - Substitution Property
5: Yes, congruent opposites - Given
6: Yes, 3 and 4 are congruent so it doesn't matter which you add they will
be the same. - Substitution Property
7: Yes, congruent - Given
Step-by-step explanation:
not 100% sure if the properties are right but I think so
