2.1 Angle Pairs FLASHCARDS

Front

Complementary Angles

Back

Two angles that add up to 90 degrees.

Front

Supplementary Angles

Back

Two angles that add to 180 degrees.

Front

Vertical Angles

Back

A pair of nonadjacent opposite angles formed by the two intersecting lines. Vertical angles are congruent

Front

Adjacent Angles

Back

a pair of angles that are NEXT TO each other. They share a COMMON VERTEX and a COMMON SIDE, and they do NOT overlap

Front

Linear Pair

Back

A pair of angles that are supplementary and adjacent. A linear pair will add up to 180 degrees

Front

Linear Pair Postulate

Back

If two angles form a linear pair, then they are supplementary (add up to 180 degrees).