1. Linear Pair Postulate If two angles form a linear pair then they are supplementary

2. Complete this postulate Through any two points there exists exactly one line

3. Complete this postulate A line contains at least two points.

4. Complete this postulate If two lines intersect, then their intersection is exactly one point.

5. Complete this postulate Through any three noncollinear points there exists exactly one plane.

6. Complete this postulate A plane contains at least three noncollinear points.

7. Complete this postulate If two points lie in a plane, then the line containing them lies in the plane

8. Complete this postulate If two planes intersect, then their intersection is a line.

9. Identify this property If a = b, then a + c = b + c Addition Property of Equality

10. Identify this property If a = b, then b = a Symmetric Property of Equality

11. Identify this property a + b = b + a Commutative Property of Addition

12. Identify this property a + (b + c) = (a + b) + c Associative Property of Addition

13. Define Collinear Points Points that lie on the same line

14. What is the distance formula?

15. What is the midpoint formula?

16. Define midpoint A point the divides a segment into two congruent segments.

17. Define congruent segments Segments that have equal length.

18. Define coplanar points Points that lie in the same plane.

19. Define complementary angles Two angles whose sum is 90 degrees

20. Define Supplementary Angles Two angles whose sum is 180 o