Geometry (Angles and Triangles) Flashcards

Front

right angle

Back

an angle that is exactly 90 degrees.

Front

obtuse angle

Back

an angle that is greater than 90 degrees and less than 180 degrees.

Front

straight angle

Back

an angle that measures exactly 180 degrees.

Front

complementary angles

Back

two Angles that add up to 90 degrees.

Front

supplementary angles

Back

two angles that add up to 180 degrees.

Front

adjacent angles

Back

Angles that share a common side and vertex

Front

vertical angles

Back

two nonadjacent angles formed by two intersecting lines

Front

vertex

Back

A point where two or more rays meet.

Front

acute angle

Back

angles that are greater than 0 degrees and less than 90 degrees

Front

parallel lines

Back

Lines that never intersect