a. Vertical angles
Vertical angles are congruent
x + 2 = 43
x = 41 degrees
b. Supplementary angles
Supplementary angles add up to 180 degrees
x + 34 + x = 180
2x = 146
x = 73 degrees
c. Complementary angles
Complementary angles add up to 90 degrees
x + 7 + 22 = 90
x + 29 = 90
x = 61 degrees
