Geometry_Shapes.txt

• Point
• A POINT is represented by a dot.

• The study of space (distance).
• Geometry is a branch of mathematics which involves the measuring of shapes. The word Geometry actually means "to measure the earth."

• Line Segment
• A LINE SEGMENT is represented by a group of points having tow endpoints. LINE SEGMENTS of the same length are congruent.

• Line
• A LINE is represented by a group of points having no endpoints.  A line extends indefinitely in two opposite directions.

• Ray
• A RAY is represented by a group of points having one endpoint. A RAY extends indefinitely in one direction.

• Angle
• An ANGLE is two rays that share a common endpoint.  The common endpoint is called the vertex.

• Intersecting Lines
• INTERSECTING LINES are lines that cross each other at some point.

• Perpendicular Lines
• PERPENDICULAR LINES are intersecting lines that form four right angles.

A PLANE is represented by a smooth, flat surface that has no thickness and extends indefinitely in all directions.

• Parallel Lines
• PARALLEL LINES are lines that never intersect.

• Simple Closed Figures
• SIMPLE CLOSED FIGURES do not have a point of intersection.

• Similar Figures
• SIMILAR FIGURES have the same shape but not the same size.

• Congruent Figures
• CONGRUENT FIGURES have the same size and shape.

• Polygons
• A POLYGON is a simple closed figure made up of line segments.

• Triangle
• A TRIANGLE is a polygon with 3 sides.

• Quadrilateral
• A QUADRILATERAL is a polygon with 4 sides.

• Parallelogram
• A PARALLELOGRAM is a quadrilateral having opposite sides which are parallel.

• Rectangle
• A RECTANGLE is a parallelogram having 4 right angles. The box in the corner means perpendicular lines forming a right angle.

• Square
• A SQUARE is a rectangle having 4 congruent sides.  The double line segments on each side means they are congruent.

• Rhombus
• A RHOMBUS is a parallelogram having 4 congruent sides.

• Trapezoid
• A TRAPEZOID is a quadrilateral having only 2 sides that are parallel.

• Pentagon
• A PENTAGON is a polygon having 5 sides.

• Hexagon
• A HEXAGON is a polygon having 6 sides.

• Octagon
• A OCTAGON is a polygon having 8 sides.

• Heptagon
• A HEPTAGON is a polygon having 7 sides.

Vertexes

• Diagonal
• A DIAGONAL is not a side.

• Heptagon
• A HEPTAGON is a polygon having 7 sides.

• Heptagon
• A HEPTAGON is a polygon having 7 sides.

• Hexagon
• A HEXAGON is a polygon having 6 sides.

• Hexagon
• A HEXAGON is a polygon having 6 sides.

• Octagon
• A OCTAGON is a polygon having 8 sides.

• Octagon
• A OCTAGON is a polygon having 8 sides.

• Pentagon
• A PENTAGON is a polygon having 5 sides.

• Pentagon
• A PENTAGON is a polygon having 5 sides.