Three Dimensional Figures

• 3-Dimensional Figure - a shape that has length, width, and height. It is also called SPACE FIGURE or SOLID
• Polyhedron - a 3-D figure that is made up of regions that are in the shape of a polygon
• Polyhedra - plural of polyhedron
• POLY is Greek for "many" and HEDRON is Greek for "base"
• Lateral - side(s) of something
• Prism - a 3-D figure that has two polygon bases that are parallel and congruent (exactly the same size and shape) as well as lateral faces (the sides next to each other) that are parallelograms. They are categorized by the type of bases they have
• Rectangular prism or Cube - a prism that has all right angles, the bases are parallel, and the lateral faces are parallelograms

  
• Triangular prism - has bases that are parallel triangles and lateral faces that are parallelogram
• Cylinder - has two parallel bases that are congruent circles
• Cone - has one circular base and one vertex (point)
• Sphere - a set of points in a space that are a given distance from a center point (it looks just like a ball)
• Pyramid - has a polygon at its base. All of its lateral faces are triangles. They are named base by their bases
• Triangular Pyramid

  
• Rectangular Pyramid

  
• Hexagonal Pyramid

  
• Pentagonal Pyramid

  
• Regular Polyhedron - a polyhedron where all the faces are identical polygons