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You don't have to use gyroelongation (lemmy.ml)
submitted 6 months ago by cypherpunks@lemmy.ml to c/mathhumor@lemmy.ml
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image descriptionStandard "they don't know" meme format, featuring line art of "That Feel Guy" wearing a party hat standing in a corner while other people are dancing. An image of an icosahedron formed by three mutually perpendicular golden ratio rectangles sits in front of That Feel Guy. The caption text says "They don't know that three mutually perpendicular golden ratio rectangles, with edges connecting their corners, form a regular icosahedron."

https://en.wikipedia.org/w/index.php?title=Regular_icosahedron&oldid=1219666251#Construction

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[-] Sotuanduso@lemm.ee 17 points 6 months ago

Golden ratio discoveries, to me, are usually either "huh, that's neat" or "are they just throwing golden ratios at the wall to see what sticks?"

This is both.

[-] TootSweet@lemmy.world 6 points 6 months ago

That's actually awesome to know, honestly.

[-] Deconceptualist@lemm.ee 2 points 5 months ago* (last edited 5 months ago)

Yeah I didn't know this before, but it's great.

It also looks like if you connect the interior points where each edge intersects another rectangle, you can get a regular octahedron inside the icosahedron.

[-] Dippy@beehaw.org 3 points 6 months ago

Can I get that as a fair die?

this post was submitted on 21 Apr 2024
110 points (93.0% liked)

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