While the edge of a regular pentagon is a value of one, the distance across it's "shoulders" is 1.618.
Even though the numbers don't mathematically work out, the relationship of 7 and 12 and then to 19 are rather
close to the Golden Ratio.
Another example is the 16:9 Widescreen format. Although a closer fit to the Golden Ratio is 16:10, there's
good logic to the 16:9 format.
If the aesthetics or the sense of balance provided by the Golden Ratio appeals to you, we offer a wide selection
of Golden Rectangles, easily accessible. We even offer them in elongated hexagon canvases and octagons, too.