Geometry Concepts

A 2-D figure that has at least three straight sides, a closed figure, and lines that cannot cross.

• Polygon

• Quadrilateral

• Shape

• parrallel

A straight path joining two endpoints.

• perpindicular

• Line segment

• equalateral triangle

• Scalene triangle

A location in space that is at the end of a ray or line segment.

• compose

• net

• Endpoint

• equal

A point where sides of an angle or polygon meet.

• polygon

• net

• face

• Vertex

A flat surface on a 3-D shape.

• polygon

• Vertex

• Face

• line segment

The inside of a closed figure.

• interior

• parralelogram

• line segment

• face

A quadrilateral that has 2 sets of parallel sides.

• Square
• Rectangle
• Parallelogram
• Trapezoid

A polygon with four sides.

• Triangle
• Hexagon
• Quadrilateral
• Pentagon

The side or face in which height is measured.

• Curved face or side
• height

• base

• Horizontal face or side

The line segment that forms a 90 Degree angle with the base.

• line segments

• base

• Height

• cubic units