Pi Day 2025 Images. Explore authentic national pi day stock photos & images for your project or campaign. That's because the date is written as 3/14 (at least in the.
Make a pie to celebrate pi day on march 14, 2025! Pi (greek letter “ π ”) is the symbol used in mathematics to represent a constant — the ratio of the circumference of a circle to its diameter — which is approximately 3.14159.