Answers:

a
[1] Vertical Angle Theorem[2] Converse of Same Side Interior Angle Theorem
b
[1] Vertical Angle Theorem [2] Same Side Interior Angle Theorem
c
[1] Vertical Angle Theorem [2] Converse of Same Side Exterior Angle Theorem
d
[1] Converse of Same Side Interior Angle Theorem[2] Vertical Angle Theorem

Answers a 1 Vertical Angle Theorem2 Converse of Same Side Interior Angle Theorem b 1 Vertical Angle Theorem 2 Same Side Interior Angle Theorem c 1 Vertical Angl class=