Ok, pi is probably a bit over the head of your average 5 year old. I know the definition of pi is circumference / diameter, but is that really how we get all the digits of pi? We just get a circle, measure it and calculate? Or is there some other formula or something that we use to calculate the however many known digits of pi there are?
In: 716
If you’re looking for a method that a 5 year old would understand, I’d go with inscribed and circumscribed polygons of a unit circle. The perimeter of the polygons will converge to 2*pi as the number of sides goes up.
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