Postulates A) Through any two points, there is exactly one line. B) Dimension Assumption: Given a line in a plane, there exists a point in the plane not on that line. C) If two points lie on a plane, the line containing them also lies on the plane. D) Through three noncolinear points, there is exactly one plane. E) If two different planes have a point in common, then their intersection is a line.
F) A line segment can be extended indefinitely along a line.
A) Two different lines intersect in at most one point.
B) If C is between A and B and on , then AC + CB = AB.
C) If A, B, and C are distinct points and AC + CB = AB, then C lies on .
D) Pythagorean Theorem: a2 + b2 = c2, if c is the hypotenuse.
Note: While you can usually get away with not knowing the names of theorems, your Geometry teacher will generally require you to know them.