Geometry Voc Chapter 2

A geometric figure formed by two rays with a common endpoint

• Protractor

• Acute angle

• Angle

A tool used to measure angles

• Protractor

• Angle bisector

• Straight angle

An angle that is greater than 0 degrees and less than 90 degrees

• Right angle

• Acute angle

• Obtuse angle

An angle that is greater than 90 degrees and less than 180 degrees

• Obtuse angle

• Straight angle

• Right angle

An angle that that is equal to 180 degrees

• Straight angle

• Obtuse angle

• Right angle

Two angles that have a common vertex and a common ray

• Adjacent angles

• Complementary angles

• Supplementary angles

A pair of angles whose measures have a sum of 90 degrees

• Supplementary angles

• Adjacent angles

• Complementary angles

A pair of angles whose measures have a sum of 180 degrees

• Adjacent angles

• Complementary angles

• Supplementary angles

Angles that have the same measure

• Congruent angles

• Vertical angles

• Adjacent angles

Angles formed by intersecting lines

• Angle bisector

• Supplementary angles

• Vertical angles