TwistedSifter on MSN
Over 2,200 years ago, Eratosthenes calculated the circumference of Earth, and his math was almost totally accurate
Impressive, right?
YouTube on MSNOpinion
Converting a circle into standard form and then graphing
Learn how to graph the equation of a circle by completing the square. Completing the square will allow us to transform the ...
The central limit theorem started as a bar trick for 18th-century gamblers. Now scientists rely on it every day.
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