1. Angle congruent to <2
answer is Angle <4
2. two pairs of congruent angles
answer is
Angles <2 and <4
and
Angles <1 and <3
3. Two pairs of vertical angles
Angles <1 and <3
Angles <2 and <4
4. Two angles that are suplementary to <3
Angles <1 and <2
Angles <3 and <4