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Equation for circle's perimeter also holds when r = 1 #25

Open gunnihinn opened 2 months ago

gunnihinn commented 2 months ago

https://github.com/nomemory/andreinc-site/blob/5e99106ffc65a5ea829929631efc17f3dbcb2ea0/_posts/2024-04-24-from-the-circle-to-epicycles.md?plain=1#L135

If r != 1, the circle's perimeter is P = 2\pi r

Better would be something like "If r is the circle's radius its perimeter is P = 2\pi r" because this holds also when r = 1.