origami

Author:tom9358

Don't get confused my the multitude of lines, just look at the green and red ones. I try to prove with geometry and/or algebra what's shown here: https://youtu.be/zU9FORjUnj0 Also, thanks James Grime and Daniel Hubbard, for the nice puzzle!

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apec
Let's fly!
Pendulum Snake
GeoGebra around GeoGebra
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם

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Euclid's proof of Pythagoras' theorem
การบวกลบจำนวนเต็ม
Stetig aber nicht gleichmässig stetig
Untitled
GWEN_NumericalInvariants2

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Logic
Hypothesis Testing
Sine
Planes
Addition