what the meaning of 2 dimensi and 3 dimensi?

Answer 1

In visual arts and geometry:

two-dimensional : it refers to something that has only "width" and "height". A painting, photograph image, a drawing, and movies are "two-dimensional". It refers to the image not to the physical object. The photograph of a house is a two-dimensional flat image of a three-dimensional object.

three-dimensional : it refers to something that has "width", "height" and "depth". A sculpture, a cube, and real life solid object are three-dimensional. A real life house is a three-dimensional object, it has "width", "height" and "depth".

Three-dimensional is a term also applied to visual representation of three-dimensional objects (3D) on a "two-dimensional" medium by creating the illusion of depth.

Answer 2

The notion of the first dimension comes from looking AT something, a "point". That represents a line.

When we are looking UPON something that is where the idea of 2 dimensions comes from. A flat, undifferentiated SURFACE area. A TV screen is a great example. When we are looking THROUGH the air that is where the notion of three dimensions comes from: SPACE.

Time (the fourth dimension) refers to sight looking through CHANGE from the past to the present to the future.

Answer 3

2 dimensial, onal cylinder C2 is the manifold obtained brom B2. You can google this.