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If you squint hard enough, the capital letter pi (Π) looks like half a circle.

Maybe this is why pi was chosen for half of the circumference of a circle.

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If you don't squint, it looks like a table. Maybe whoever chose it hadn't had lunch yet.

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[insert pie joke here]

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I gotta squint pretty hard lol

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What is this Cunningham's law?

Pi is not half the circumference. It's how many times the diameter fits into the circumference.

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

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

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Now you're just being silly.

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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

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