Google’s new logo, which you can see on the top right, contains not only the famous πr2 formula, but five other uses of π: measuring the volume of a sphere (V = 4⁄3 πr3), computing the circumference of a circle (C = 2πr), measuring the volume of a cylinder (V = πr2h), Archimedes’ calculation of Pi (223/71 < π < 22/7), and even the ...
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Pi Day: Google Doodle Celebrates Math Nerds Everywhere
