Introduction to some terms and postulates, as well as determining coplanar points.

3. Today's Standard:
1.0: Students demonstrate
understanding by
identifying and giving
examples of undefined
terms, axioms, theorems,
and inductive and
deductive reasoning.

6. Postulate: ___________________________
Postulate 1­1: Through any 2 points there is
exactly 1 line.
Postulate 1­2: If two lines intersect, then they
intersect in exactly one point.
Postulate 1­3: If two planes intersect, then
they intersect in exactly 1 line.
Postulate 1­4: Through any 3 noncollinear points
there is exactly one plane.

7. Which points are coplanar?

8. Rally Coach
What is the intersection of:
1) EH and HD
2) DC and BC
3) ADE and DHG
4) FGC and ABC
5) AC and EA
6) HFB and EHA

9. Homework:
1.3 p. 19
#1­43 (odd), 55­60
Always write/draw
problems!!