two dimension- 3 dimension presentation.

about drawing 2d and 3d

1. A polygon is a 2-dimensional shape formed by line segments. It is classified according to the number of sides.

2. A regular polygon is a two-dimensional shape having all sides of equal length and all interior angles of equal measure. Thus, sides and angles are the two parts of a regular polygon that are always congruent or equal.

3. CLASSIFICATIONS OF SOLIDS 1. Polyhedron – It comes from Greek words poly, means many and hedron , means face. Thus, polyhedron means many faces. Each face is made up of a polygon.

4. CLASSIFICATIONS OF SOLIDS TYPES OF POLYHEDRON 1.1. Prism - is a polyhedron for which the top and bottom faces (known as the bases) are congruent polygons, and all other faces (known as the lateral faces) are rectangles. A prism is described by the shape of its base. For instance, a rectangular prism has bases that are rectangles, and a pentagonal prism has bases that are pentagons.

5. CLASSIFICATIONS OF SOLIDS TYPES OF POLYHEDRON 1.2. Pyramid - is a polyhedron for which the base is a polygon and all lateral faces are triangles. A pyramid is typically described by the shape of its base. For instance, a triangular pyramid has a base that is a triangle, and a hexagonal pyramid has a base that is a hexagon.

6. CLASSIFICATIONS OF SOLIDS TYPES OF POLYHEDRON 1.3. Platonic solids - They are the only polyhedra whose faces are all exactly the same. Every face is identical to every other face. For instance, a cube is a Platonic solid because all six of its faces are congruent squares. The same number of faces meet at each vertex. Every vertex has the same number of adjacent faces as every other vertex. For example, three equilateral triangles meet at each vertex of a tetrahedron.

7. CLASSIFICATIONS OF SOLIDS TYPES OF POLYHEDRON 2. non-Polyhedron – is a 3-dimensional figure without polygons.

8. A net is the pattern made when the surface of a three-dimensional figure is laid out flat showing each face of the figure. A net is folded to make a three-dimensional figure.

9. CLASSIFICATIONS OF SOLIDS