Pi can be used to measure many different things including hat size | Hey Ray
If you ever bought a fitted hat, you have had Pi on your head! You may have seen the number on the inside of the hat showing ...
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Hey Ray: Using Pi to measure hat size
The Pi ratio can be used to measure many different things including your hat size. KDKA First Alert Meteorologist Ray Petelin expains. Senate votes to avoid government shutdown as 10 Democrats ...