PI T-SHIRT

HANDMADE GREEK T SHIRT WITH 100% ORGANIC COTTON PEIGNE AND WITH THE FAMOUS DESIGN OF PYTHAGORAS  THE PI.The number π is a mathematical constant, the ratio of a circle's circumference to its diameter, commonly approximated as 3.14159. It has been represented by the Greek letter "π" since the mid-18th century, though it is also sometimes spelled out as "pi" (/paɪ/).

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