# The Square root of Pi

Last night my younger son asked me about $\sqrt{\pi}$.  I got so caught up in thinking about what to talk about that I actually forgot the context that gave rise to the question.  Oh well.

It certainly is true that $\sqrt{\pi}$ comes up less frequently than plain old $\pi$, but there were still a few fun ideas.

First was the obvious one – squaring the circle:

Finally, a fun suggestion from twitter:

Even though this suggestion is a little above what we’ve studied, I thought it would be fun to talk through it:

Definitely a fun little morning with $\sqrt{\pi}.$