Geometry Review - Unit 1 Vocabulary

Front

What is the Segment Addition Postulate?

Back

If point B is between points A and C, then AB + BC = AC.

Front

What are Supplementary Angles?

Back

Two angles whose measures sum up to 180°.

Front

What is the Midpoint Formula?

Back

The midpoint M of a segment with endpoints (x1, y1) and (x2, y2) is M = ((x1 + x2)/2, (y1 + y2)/2).

Front

What are Complementary Angles?

Back

Two angles whose measures sum up to 90°.

Front

What is a Line Segment?

Back

A part of a line that has two endpoints.

Front

What is a Ray?

Back

A part of a line that starts at a point and extends infinitely in one direction.

Front

What is a Line?

Back

A straight path that extends infinitely in both directions.

Front

What are Collinear Points?

Back

Points that lie on the same straight line.

Front

What is the Distance Formula?

Back

The distance d between two points (x1, y1) and (x2, y2) is d = √((x2 - x1)² + (y2 - y1)²).

Front

What is the Angle Addition Postulate?

Back

If point B is in the interior of angle AOC, then m∠AOB + m∠BOC = m∠AOC.