angles

ANGLES

Acute angle: less than 90*

Right angle: exactly 90*

Obtuse angle: greater than 90*

Less than 180*

Straight angle: 180*

Congruent angle: Angles that have the same  measure

Angle Bisector: A ray that divides two congruent angles

Complementary angles:  two angles that have the sum of measure is 90*

Supplementary angles: two angles that have the sum of measure is180*

Adjacent angle: Two angles that share a common vertex and side, but have no common interior points

Linear pair:  two adjacent angles whose noncommon sides are opposite rays

• Linear paris are supplementary angles

Vertical angles: two angles whose sides form two pairs of opposite

Rays They are opposite angles created by the crossing lines.