[quote=Jorick]
c/πd equals 1, and as such it is not a rational fraction that gives you pi, as they were discussing. Pro tip: if pi is in the fraction it's not rational and it probably won't equal pi.c = πdthusc/πd = πd/πd = 1Then you're probably not as much of a math genius as you thought. This is intro to geometry level content here. 
[/quote]

Depends how old they are. I was going to make a comment but reminded myself that RPG's age range is ever-expanding.