Question

wht are to dimensions, wht does it mean?

Answer 1

A two dimensional or a 2D is a world filled with objects with length and breadth only. Unlike a 3D world it doesn't have height.

The simplest 2D object I could suggest is a rectangle. It has its length, and breadth only. If it had height too, we would say it a cuboid instead of a rectangle.

Answer 2

Your Answer :

The dimensions of a physical quantity are the powers to which the base quantities are raised to represent that quantity.

[ ] Square Brackets represents us that we are dealing a dimensions of the quantity!!!

Example -

Dimensions of Area :

Area = Length ²

2 in Length

Dimensional Formula ==> [ L ] ² or [ L² ]