math

craft DIY math nerdgasm nerdy paper project torus - 5182123008
Via Dudecraft
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Check the via link for the schematics and you can make a sweet card torus yourself!

funny math savings pizza - 8083685120
By Unknown
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The math of why bigger pizzas are such a good deal is simple. A pizza is a circle, and the area of a circle increases with the square of the radius.

So, for example, a 16-inch pizza is actually four times as big as an 8-inch pizza.

And when you look at thousands of pizza prices from around the U.S., you see that you almost always get a much, much better deal when you buy a bigger pizza.