Angle Vocabulary

Front

What are lines that meet or cross at a point called?

Back

Intersecting lines

Front

What are complementary angles?

Back

Angles that add up to 90°

Front

What kind of angles add up to 180°?

Back

Supplementary angles

Front

What are lines that never intersect and are always the same distance apart?

Back

Parallel lines

Front

What do we measure angles in?

Back

Degrees

Front

What are angles that are equal to each other called?

Back

Congruent angles

Front

What do you call angles that are opposite each other when two lines intersect?

Back

Vertical angles

Front

What is the sum of angles in a triangle?

Back

180°

Front

What are adjacent angles?

Back

Angles that share a common side and vertex but do not overlap.

Front

What is the term for angles that add up to 360°?

Back

Explementary angles