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Angle Relationships Section 1-5

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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Page 1: 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

Angle Relationships

Section 1-5

Page 2: 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

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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Page 3: 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

Vertical angles

two nonadjacent angles formed by two intersecting lines

Vertical angles are congruent.

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Page 4: 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

Linear pair

adjacent angles whose noncommon sides are opposite rays

The sum of the measures of the angles in a linear pair is 180.

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Page 5: 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

Perpendicular lines

special intersecting lines that form right angles

Perpendicular lines intersect to form 4 right angles.

Page 6: 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

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

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

The sides of the angles The vertex B C A Side ABSide AC

The sides of the angles The vertex B C A Side ABSide AC

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