Download Type of angle Properties Example Complementary Angles Two

Type of angle
Complementary
Angles
Properties
Two angles whose angle
measures total 90 degrees.
Supplementary
Angles
Two angles whose
measures total 180
degrees.
Adjacent Angles
When two angles share a
side and a vertex but have
no common interior points.
Vertical Angles
When two lines intersect at
a point, they form four
angles. The nonadjacent
angles are vertical angles.
Alternate
Interior Angles
The pairs of angles on
opposite sides of the
transversal for two lines,
but inside the two lines.
Alternate
Exterior Angles
The pairs of angles on
opposite sides of the
transversal for two lines,
but outside the two lines.
Example
Corresponding
Angles
The pairs of angles on the
same side of the
transversal for two lines
and on the same side of
the given line.
Exterior Angle
Angles formed by one side
of a polygon and the
extension of an adjacent
angle
The exterior angle of a
triangle is:
~Always supplementary to
the interior angle it is
adjacent to
~Always equal to the sum of
the other two interior
angles of the triangle
Interior Angle
Angles formed by two
adjacent sides of a polygon.
** the sum of the measure of
the interior angles of a
triangle is 180 degrees.