Angle Relationships Section 1-5 Adjacent angles Angles in the same plane that have a common vertex and a common side, but no common interior points.

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Presentation transcript:

Angle Relationships Section 1-5

Adjacent angles Angles in the same plane that have a common vertex and a common side, but no common interior points. 1 2

Vertical angles two nonadjacent angles formed by two intersecting lines Vertical angles are congruent. 3 4

Linear pair adjacent angles whose noncommon sides are opposite rays The sum of the measures of the angles in a linear pair is

Perpendicular lines special intersecting lines that form right angles Perpendicular lines intersect to form 4 right angles.

Supplementary angles – 2 angles whose measures have a sum of 180 Complementary angles – 2 angles whose measures have a sum of 90