Pi is the number of radians in half a circle, not a whole circle. That makes things confusing: For example, the angle at the tip of a slice of pizza — an eighth of a pie — isn’t π/8, but π/4.

Eastside Food & Drink Local News Puget Sound Science It’s Pi Day! Here’s how you can celebrate with math and specials on pizzas and pies March 14, 2019 at 7:12 am Updated March 14, 2019 at 12: ...