Question

what is fourth
dimension​

Answer 1

Explanation:

A four-dimensional space or 4D space is a mathematical extension of the concept of three-dimensional or 3D space. Three-dimensional space is the simplest possible abstraction of the observation that one only needs three numbers, called dimensions, to describe the sizes or locations of objects in the everyday world.

Answer 2

Answer:

A four or fourth-dimensional space or 4D space is a mathematical extension of the concept of three-dimensional or 3D space. 

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