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angle relationship

sol 8.6

acute angle measures less than 90°
right angle measures 90°
obtuse angle measures between 90° and 180°
straight angle measures 180°
complementary angles 2 angles with a sum of measures = 90°
supplementary angles 2 angles with a sum of measures = 180°
ray a part of a line that has one endpoint and extends without end in one direction
vertex a point at which two sides of angle meet
vertical angles two nonadjacent angles formed by intersecting lines
adjacent (side by side) two angles that share a common side and have the same vertex.
parallel lines two lines in the same plane that do not intersect
transversal a line that crosses at least two other lines.
Created by: pktaylor