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9 Cards in this Set

  • Front
  • Back
If OA-OB-OC,
then <AOB + <BOC = <AOC.
A ray that bisects an angle...
...divides it into angles half as large as the angle.
Complements of the same angle...
...(or equal angles) are equal.
Supplements of the same angle...
...(or equal angles) are equal.
If two angles are a linear pair,
then they are supplementary.
If two angles in linear pair are equal,
then each is a right angle.
If two angles are vertical angles,
then they are equal.
If two lines are perpendicular,
then they form four right angles.
Any two right angles...
...are equal.