RUDE NUMBERS

“X” became the unknown because it’s mysterious and slightly smug.

✗ FAKE

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In trigonometry, sine, cosine, and tangent relate angles to side lengths in right triangles — triangle magic for grown-ups.There are infinitely many prime numbers — an eternal supply of mathematical celebrities.The first pie chart was invented by someone who wanted statistics to look edible.The first algorithm was “try again.” Still the most-used.A right angle is called “right” because it’s judgmental about the others.Pi Day is celebrated on March 14 (3/14) to represent 3.14 — the only holiday dedicated to an endless number and endless nerd pride.See all Rude Numbers facts →

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