Geometry CP 1.1-1.2 Vocabulary Review

Definition: has no dimension and is represented by a dot.

• line

• plane

• point

• ray

Definition: has one dimension and is represented by a line with two arrowheads and extends without end.

• line

• plane

• point

• segment

Definition: has two dimensions, is represented by a shape that looks like a floor or wall, and extends without end.

• line

• plane

• ray

• segment

Definition: points that lie on the same line.

• collinear points

• coplanar points

• endpoints

• midpoints

Definition: points that lie in the same plane.

• collinear points

• coplanar points

• endpoints

• midpoints

Definition: consists of two endpoints and all collinear points between them.

• line

• plane

• point

• segment

Definition: points that represent the ends of a line segment or ray.

• collinear points

• coplanar points

• endpoints

• midpoints

Definition: consists of one endpoint and all collinear points on one side of the endpoint.

• point

• plane

• ray

• segment

Definition: the set of points that two or more geometric figures have in common.

• defined terms

• intersection

• opposite rays

• undefined terms

Definition: words that do not have formal definitions, but there is general agreement about what they mean.

• defined terms

• intersection

• opposite rays

• undefined terms