Aspect ratio

Aspect ratio of a shape is the ratio between width and height. For example, if a picture or video has resolution of 1920x1080, That means the width is 1920 and the height is 1080. If we write them as ratio, these two parameters become (width:height) 1920:1080. Dividing both of them by the lowest common denominator 120 it becomes 16:9. This is ultimately the aspect ratio of the shape.^[1] Similar calculations apply to other shapes, such as buildings, flags, wings, or sheets of paper or other material.

This short article about technology can be made longer. You can help Wikipedia by adding to it.