A tale of two problem solvers | Average cube shadow area

3Blue1Brown

What's the average area of a cube's shadow? Numberphile video on Bertrand's paradox:    • Bertrand's Paradox (with 3blue1brown) - Nu...   Help fund future projects:   / 3blue1brown   An equally valuable form of support is to simply share the videos. There's a small error at 19:30, I say "Divide the