CORONA DEL MAR — Karina Grover wore a lime green T-shirt with the pi symbol, as she sat perched at a table covered in pi swag at Mathnasium. There was a pi coloring sheet, pi trivia, lime-green pi ...
On March 14, math classes across the country will celebrate Pi Day—a national holiday in honor of the mathematical constant pi, which represents the ratio of a circle’s circumference to its diameter ...
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