Geometry Vocabulary

Front

What are Vertical Angles?

Back

Two angles that are opposite of each other and congruent.

Front

What are Supplementary Angles?

Back

Two angles that have a measure of 180 degrees.

Front

What are Corresponding Angles?

Back

Angles that are in the same position on two parallel lines in relation to a transversal.

Front

What are Parallel Lines?

Back

Two lines in the same plane that will never intersect or cross.

Front

What are Perpendicular Lines?

Back

Two lines that intersect to form right angles.

Front

What is a Ray?

Back

A figure formed by two points, one of which is an endpoint, extending infinitely in one direction.

Front

What is a Transversal?

Back

A line that intersects two or more lines.

Front

What are Adjacent Angles?

Back

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

Front

What are Complementary Angles?

Back

Two angles that have a measure of 90 degrees when added together.

Front

What is a Triangle?

Back

A polygon with three edges and three vertices.