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The diameter of the earth at the equator is appoximately 7900 what is the appoximate surface area of the earth?
Heatherkersey88
From mathematics, if a sphere has a given radius R then the surface area is A=4*pi*R2
So: R=7900/2=3950
A=4*pi*39502=196,066,798 km2
In reality it is 510,000,000 km2 because Earth is not an exact sphere and its radius is 6,378.15 km.
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∙ 15y ago
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Does equator mean the same as diameter?
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