1.4: Pairs of Angles
Definitions:
Adjacent Angles - Two angles in the same plane with a common vertex and a common side but no common interior points.
Linear Pair - A pair of adjacent angles whose non-common sides are opposite rays.
Complementary Angles - Two angles whose measures have a sum of 90º.
Supplementary Angles -Two angles whose measures have a sum of 180º.
Vertical Angles - Two nonadjacent angles formed by two intersecting lines.
Examples
Definitions:
Adjacent Angles - Two angles in the same plane with a common vertex and a common side but no common interior points.
Linear Pair - A pair of adjacent angles whose non-common sides are opposite rays.
Complementary Angles - Two angles whose measures have a sum of 90º.
Supplementary Angles -Two angles whose measures have a sum of 180º.
Vertical Angles - Two nonadjacent angles formed by two intersecting lines.
Examples