1. 1.6 Angle Pair Relationship
Vertical Angles
Complementary and Supplementary Angles

2. Adjacent angles
Adjacent means next to each other; the same as adjacent lockers. Adjacent lockers share one wall.
Adjacent angles share one side and have a common vertex. ∠ABC and ∠CBX are
A C adjacent angles
B X

3. Vertical Angles Angle made by crossing lines 3 1 2 4
1 2 4
Vertical Angles are Congruent

4. Complementary angles (Comp)
Two angles that add to 90 degrees are complementary
and are Complementary,
1 is the Complement of 2

5. Supplementary angles (Supp.)
Two angles that add to 180 degrees.
and are
3 4 Supplementary.
is the supplement of

6. Linear Pair Two adjacent angles that make a straight line. 5 6
5 6
Linear pairs are supplementary

7. Classify the pairs of Angles if Possible
and If

8. M
L 4x x + 30
3y N
O 3y – 15
Solve for x and y

9. If and are Comp.
If and are Supp.

10. Homework
Page 47 – 48
#8 - 36

11. Homework
Page 48 – 50
#37-55, 57, 58, 59,