Warning: Pi is Irrational T-Shirt
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Warning: Pi is Irrational design which is perfect for Math Teachers and Math Lovers on Pi Day. Featured is battered warning sign with Pi Symbol. Geeks and Nerds will love this one.
Warning: Pi is Irrational design which is perfect for Math Teachers and Math Lovers on Pi Day. Featured is battered warning sign with Pi Symbol. Geeks and Nerds will love this one.