It may be Pi Day, but what does the hypotenuse say?
USA TODAY, MARCH 11, 2015

“The National Museum of Mathematics has already run out of red pizza Pi cutters, though you can still get one in black. The handle is in the shape of the 16th letter of the Greek alphabet, ? (pronounced pi), making it the perfect tool for divvying up a dish of saucy dough while contemplating the ratio between its circumference and diameter.”