1A ANG: Vocab Review

Front

Angle > 90°

Back

Obtuse angle

Front

Angle < 90°

Back

Acute angle

Front

Two rays sharing the same vertex.

Back

angle

Front

Angle measuring 90°

Back

Right angle

Front

Angle measuring 180°

Back

Straight angle

Front

Congruent angles formed by intersecting lines, across the vertex.

Back

vertical angles

Front

Two angles sharing a common side and vertex

Back

adjacent angles

Front

Angles that add to 180°

Back

supplementary angles

Front

Angles that add to 90°

Back

complementary angles

Front

Triangle with one angle measuring 90°

Back

right triangle