geometry exams vocabulary

Line

Made up of two points with no thickness or width; Extends indefinitely in both directions

Plane

A flat surface made up of points that extents indefinitely in all direction.

Bisector

A line, ray, or segment that divides an angle or segment into two equal parts

Adjacent angles

Two angles that share a common vertex and side

Vertical angles

Congruent angles that are across from each other on intersecting lines.

Complementary

Two angles with measures that have a sum of 90 degrees

Supplementary

Two angles with measures that have a sum of 180 degrees

Linear pair

Adjacent angles that are supplementary

Perpendicular

Two lines that intersect at a 90 degree angle

Angle

The intersection of two rays at a common end point

Point

A location with no size or shape

Line segment

A measurable part of a line consisting of two endpoints

Ray

A line that extends indefinitely in one direction

Collinear

Points that lie on the same line

Coplanar

Points that lie on the same plane