The average circumference of the Earth is approximately 40,075 kilometers (24,901 miles) around the equator.
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To calculate the circumference of the Earth, you can use the formula C 2r, where C is the circumference, is a constant (approximately 3.14159), and r is the radius of the Earth. The average radius of the Earth is about 6,371 kilometers. Plug this value into the formula to find the circumference.
The equatorial circumference of Earth is approximately 24,901 miles.
The circumference of Earth is approximately 24,901 miles, and the diameter is about 7,917.5 miles.
circumference = average radius of earth x 2 x (pi) = 6274 x 103 x 2 x (pi) = 3.94... x 107 metres (taking population as half male, half female) : average height of adult human from UK = 1.6845 metres so: number of people = circumference / average height = 3.94... x 107 / 1.6845 = 2.34 x 107 people = 23,400,000 people
The difference between the Earth's polar circumference and equatorial circumference, known as the flattening of the Earth, indicates that the Earth is an oblate spheroid. This means that the Earth is slightly flattened at the poles and bulges at the equator, making it not a perfect sphere.