Topic 1: Foundations of Geometry

Front

What is a flat surface that has no thickness and extends forever?

Back

Plane

Front

What is the term for a point where two lines meet?

Back

Vertex

Front

What is a straight path that extends infinitely in both directions?

Back

Line

Front

What is a location in space that is represented by a dot and has no dimensions?

Back

Point

Front

What is a part of a line that has two endpoints?

Back

Line Segment

Front

What is a part of a line that has one endpoint and extends infinitely in one direction?

Back

Ray

Front

What is formed by two rays that share a common endpoint?

Back

Angle

Front

What is the term for the distance between two points?

Back

Length

Front

What is the term for a straight line that intersects another line at a right angle?

Back

Perpendicular Line

Front

What is the term for two lines that never intersect?

Back

Parallel Lines