Mathnasium of Milford will be celebrating the mathematical constant pi in all kinds of fun and tasty ways on Thursday, March 14 from 5 p.m. to 7 p.m. at their location on 201 Cherry St. in Milford. March 14 is celebrated worldwide as Pi Day because the number, which represents the ratio of a circle’s circumference to its diameter, is approximately equal to 3.14. Mathnasium will have food, games, activities, rewards, a Pi Day Champion contest and a raffle. To enter the contest, memorize the digits of pi for a prize. Everybody is invited, including parents. This is a free public event. Text 203-783-1490 to RSVP.