VESA defines the distance in millimeters between the four mounting holes on the back of a TV (distance horizontally x distance vertically). VESA is the standard used for TV brackets and wall mounting systems, adapted by most TV brands.
You can refer to the specifications in the product manual but perhaps the fastest and easiest way to find out the VESA size of your TV is just by measuring it.
Locate the four holes in the back of your television, you just need to measure these from left to right and top to bottom as per the diagram below.
