Two useful methods of cutting round cakes

I’ve been cutting round cakes into triangular pieces all my life. Turns out there are multiple ways of cutting cakes depending on whether you’re trying to maximize the number of servings

http://youtu.be/KXo73a6oLlQ

Or keep the cut edges fresh as you eat the cake over a number of days.

https://www.refinery29.com/en-us/2017/01/135251/cut-round-cakes-scientific-viral-video

Great techniques.