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Pi Approximation Day Hats

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Another Pi Day! Hat
Main Tag:  

Description: Another Pi Approximation Day design. Another Pi Day! Twenty Second of July, Pi Approximation Day, 22 divided by 7 equals approximately 3.14. Fascinating smart people for a long time. Good choice for anybody with interest in mathematics, sciences, engineering, history, etc.

Tags: 22nd of july, irrational number, circumference, 22 divided by 7, geek

Another Pi Day! Hat

by cartogram

$19

Pi Approximation Day! Hat
Main Tag:  

Description: Another Pi Day! Twenty Second of July, Pi Approximation Day, 22 divided by 7 equals approximately 3.14. Fascinating smart people for a long time. Good choice for anybody with interest in mathematics, sciences, engineering, history, etc. Colorful version.

Tags: circle, circumference, geek, irrational number, nerd

Pi Approximation Day! Hat

by cartogram

$19

Another Pi Day! Hat
Main Tag:  

Description: Pi Approximation Day! Twenty Second of July, Pi Approximation Day, 22 divided by 7 equals approximately 3.14. Fascinating smart people for a long time. Good choice for anybody with interest in mathematics, sciences, engineering, history, etc. Black version.

Tags: 22 divided by 7, circumference, irrational number, 22nd of july, pi symbol

Another Pi Day! Hat

by cartogram

$19

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