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VS Geometry

Introduction to Geometry Vocabulary

The set of points containing two points on a line, called endpoints. segment
Two lines that intersect to form right angles Perpendicular Lines
A triangle that has at least two congruent sides. Isosceles Triangle
A closed figure formed by the coplanar line segments that are joined at their endpoints. Polygon
An infinite set of points extending in two directions Line
Points that are contained on the same line Collinear
A union of two rays that share a common endpoint. Angle
Two coplanar angles that share a common vertex and a common side. Adjacent Angles
The angle opposite the base. Vertex
A position in space Point
The part of a triangle that is the line segment drawn from any vertex of the triangle to the midpoint of the opposite side. Median
The set of points extending in all directions. Plane
A point that divides a line segment into two congruent segments. Midpoint
A line that is perpendicular to the line segment, intersecting the line segment at its midpoint. Perpendicular Bisector
A ray whose endpoint is the vertex of the angle. Side
A triangle that has three congruent sides. Equilateral Triangle
A quadrilateral that has only one pair of parallel sides, called bases. Trapezoid
A quadrilateral whose opposite sides are parallel. Parallelogram
The congruent angles located at the base of a triangle. Base angles
A four sided polygon. Quadrilateral
Points that are contained on the same plane. Coplanar
A rhombus with four right angles Square
The line segment drawn from any vertex of the triangle, perpendicular to the opposite side. Altitude
A parallelogram with four congrudent sides. Rhombus
When two figures have the same size and shape. Congruent
The intersection of two rays of an angle. Vertex
A line that intersects the segment at its midpoint, dividing the segment into two congruent segments. Bisector
Created by: fishers