Geometry theorems

Line Intersection Theorem:

two different lines intersect in at most one point.
Betweenness Theorem:

If B is between A nad C, then AB + BC = AC
Theorem (unnamed):

For any three points A, B, and C, AB + BC > AC.
Linear Pair Theorem:
Vertical Angle Theorem:
- If two angles form a linar pair, then they are supplementary.
- If two angles are vertical angles, then they have equal measures.
Perpendicular Lines and Slopes Theorem:

Two non-vertical lines are perpendicular if and only if the product of their slopes = -1.
Parallel Lines and Slopes Theorem:

Two non-vertical lines are parallel if and only if they have the same slope.

Author

mathlover1

32101

Card Set

Geometry theorems

Description

Geometry theorems...add over time. Based on Euclid's geometry.

Updated

2010-09-12T21:09:32Z

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