Make an 80.5 banner. What's its width?

Banners, also called horizontal banners, are banners. Commonly used are 4-foot banners, 6-foot banners and 2-foot banners, which are generally made of 4-foot (6-foot, 2-foot) rice paper. The aspect ratio is 4: 1.

So the banner of 80.5 is 20 wide. 1