Question

can someone help me with this proof?
-if angle 1 is a right angle, then angle 2 is a right angle.

statements: 1)angle 1 & 2 are vertical angles
2)angle 1 is congruent to angle 2
3)measure angle 1 is congruent to measure angle 2
4)angle 1 is a right angle
5)measure angle 1 = 90 degrees
6)90 degrees = measure angle 2
7)angle 2 is a right angle

reasons: 1)definition of a right angle
2)vertical angles theorem
3)definition of vertical angles
4)given
5)definition of a right angle
6)definition of congruent angles
7)substitution property of equality