Dealing with irrational values?

[RTCool]

A little more here:

Ann Tyng's Platonic Solids Exercise

Aaron’s video on making a dodecahedron was great and got me inspired to make a SketchUp version of this old, dusty and broken model that’s been sitting on my shelf for years that I often thought about reconstructing in SketchUp: [Tyng Platonics] The model is left over from taking Ann Tyng’s class when I was in architecture school at Penn. She was very interested in platonic solids among other things, and this exercise relates a bunch of them by inscribing them inside each other. We referred…

What @Cotty showed using the three golden rectangles is one of the things Ann Tyng taught us in that exercise.