Unit 1 Geometry Vocab

Front

Bisector

Back

To cut or divide into two equal or nearly equal parts.

Front

Point

Back

A location represented by a dot. A point does not have any length, width, shape or size, it only has a position.

Front

Diameter

Back

A straight line from edge to edge of a circle that goes through the center.

Front

Circle

Back

A closed two-dimensional figure in which the set of all points in the plane is equidistant from a given point called the center.

Front

Line

Back

One-dimensional figure, which has length but no width and extends forever in both directions.

Front

Line Segment

Back

A part of a line that is bounded by two distinct end points.

Front

Ray

Back

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

Front

Perpendicular Lines

Back

Two lines that intersect at a right angle (90 degrees).

Front

Parallel Lines

Back

Two lines in a plane that never meet and are always the same distance apart.

Front

Angle

Back

Formed by two rays with a common endpoint, measured in degrees.