An……………. of a 3-D figure can be drawn
proportional to the given dimensions
Answers
Answer:
A two-dimensional shape has length and width. A three-dimensional solid shape also has depth. Three-dimensional shapes, by their nature, have an inside and an outside, separated by a surface. All physical items, things you can touch, are three-dimensional.
This page covers both straight-sided solids called polyhedrons, which are based on polygons, and solids with curves, such as globes, cylinders and cones.
Step-by-step explanation:
Polyhedrons
Polyhedrons (or polyhedra) are straight-sided solid shapes. Polyhedrons are based on polygons, two dimensional plane shapes with straight
Polyhedrons are also often defined by the number of edges, faces and vertices they have, as well as whether their faces are all the same shape and size. Like polygons, polyhedrons can be regular (based on regular polygons) or irregular (based on irregular polygons). Polyhedrons can also be concave or convex.
One of the most basic and familiar polyhedrons is the cube. A cube is a regular polyhedron, having six square faces, 12 edges, and eight vertices
Regular Polyhedrons (Platonic Solids)
The five regular solids are a special class of polyhedrons, all of whose faces are identical with each face being a regular polygon. The platonic solids are:
Tetrahedron with four equilateral triangle faces.
Cube with six square faces.
Octahedron with eight equilateral triangle faces.
Dodecahedron with twelve pentagon faces.
Icosahedron with twenty equilateral triangle faces.