A polygon is a plane (2-dimensional) object bounded by straight lines. A polyhedron (not polyhendron!) is a solid (3-dimensional) object bounded by polygonal faces. So, pyramids and some prisms are polyhedra. A cylinder is a type of prism but, because two of its faces are circular, those faces are not polygons. As a result a cylinder is not a polyhedron.
A two-dimensional object is an object that can be drawn on a flat sheet of paper. It's called "two-dimensional" because it has 2 dimensions . . . length and width, but no height.
dimensional proportion
It is a 3 dimensional shaped object
when a two dimensional object is transformed by either translation,rotation,scaling,shearing etc on a plane ,it is called two dimensional transformation..
Some triangular pyramids fit this description. They are called regular tetrahedrons.
A three-dimensional object is called a solid.
For a plain 2-dimensional figure it is an OCTAGON. For a 3-dimensional object it is an OCTAHEDRON.
A pentagon is a 2 dimensional object. The 3 dimensional object, with 12 pentagonal faces, is called a dodecahedron.
A two-dimensional object is an object that can be drawn on a flat sheet of paper. It's called "two-dimensional" because it has 2 dimensions . . . length and width, but no height.
A polygon is a plane (2-dimensional) object bounded by straight lines. A polyhedron (not polyhendron!) is a solid (3-dimensional) object bounded by polygonal faces. So, pyramids and some prisms are polyhedra. A cylinder is a type of prism but, because two of its faces are circular, those faces are not polygons. As a result a cylinder is not a polyhedron.
dimensional proportion
It is a 3 dimensional shaped object
Sphere !
An object in 3-dimensional space is called a three-dimensional object or a 3D object. These objects have length, width, and height, making them appear solid and taking up space in all directions.
Two dimensional object is a plane figure where as three dimensional object is solid (space) figure.
The amount of space taken by an object is called its volume. This is the measure of how much three-dimensional space an object occupies.