this post was submitted on 20 Jul 2023
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Showerthoughts

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If you squint hard enough, the capital letter pi (Π) looks like half a circle. (discuss.tchncs.de)
submitted 1 year ago by [email protected] to c/[email protected]
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Maybe this is why pi was chosen for half of the circumference of a circle.

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[–] [email protected] 0 points 1 year ago (2 children)

It is half of the circumference, multiplied by the radius, of course.

like in this image I found online

[–] [email protected] 1 points 1 year ago (1 children)

That's not half the circumference then is it???

[–] [email protected] -1 points 1 year ago

Now you're just being silly.

[–] [email protected] -1 points 1 year ago* (last edited 1 year ago) (1 children)

I can level up with more sources (stanford, wiki).

The circumference is 2pi x radius, which obviously means half the circumference is pi x radius.

Edit: formatting. Asterisk results in italics