and you can see that the ribbon is just over 3 times the diameter of 1 circle. This number, called Ï€ (or pi), is approximately 3.14. You have shown that the circumference of a circle is Ï€ × ...
the circumference would be 24,662 miles, and the polar diameter 7,850 miles-only 50 miles short of the true polar diameter. This is considered to be one of the first great triumphs of scientific ...
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