Seems obvious to me: you have a square with four sides of length *n*, and when y...

		runeks on March 11, 2018 \| parent \| context \| favorite \| on: Round Peg in a Square Hole [video] Seems obvious to me: you have a square with four sides of length n, and when you fold the paper, the four-sided square with a circumference of 4n becomes a slit of length 2n.