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pi = Cirumference C divided by diameter d. The circumference is the distance around a closed curve. Circumference is a kind of perimeter. Circumference of a circle
The circumference of a circle can be calculated from its diameter using the formula:
C = pi times d
Or, substituting the diameter for the radius:
C = pi times 2 r
where r is the radius and d is the diameter of the circle, and pi is defined as the ratio of the circumference of the circle to its diameter.
The numerical value of pi is 3.141 592 653 589 793...
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In ancient Greece who estimated the earths circumference?
Eratosthenes is credited with calclating the circumference of the Earth at the equivalent of 25,000 miles/40,000km in about 205 BCE.
What is cicumnavigate?
It is to sail around the circumference of the Earth.
What did Eratosthenes determine?
He postulated the circumference of the earth.
What do you mean by arc?
An arc is a part of the circumference of a circle.
What is the circumference of the colony of bacterial colony of 10 mm?
3.140
