What is the circumference of the earth?

1 Answer
Trevor Ryan.
Dec 30, 2015

±40000km

Explanation:

Since the earth may be approximated as a circular spherical structure, we may use its average radius (obtainable from data sheets) to approximate its circumference by using the formula
C=2πr≈2π(6.376×106m)≈40×106m.

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