Geometry Vocab

Front

Location in space represented by a dot with no dimension.

Back

Point

Front

Straight array of infinite points extending indefinitely in both directions; one dimension.

Back

Line

Front

Measurable piece of a line with two endpoints.

Back

Segment

Front

Flat surface extending indefinitely in all directions with two dimensions.

Back

Plane

Front

Line with one endpoint extending indefinitely in one direction.

Back

Ray

Front

Real number corresponding to a point on a line.

Back

Coordinate

Front

Point dividing a segment into two equal parts.

Back

Midpoint

Front

Rule accepted without proof.

Back

Postulate

Front

Points on the same line.

Back

Collinear

Front

Points or lines on the same plane.

Back

Coplanar