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What is the size of the Earth's surface?

Answer 1

Alexander Acosta

Use the formula for the surface area of a sphere to get an approximate value of #200,000,000 = 2xx10^8# square miles

The surface area of a sphere of radius #r# is #4 pi r^2#

The radius of the Earth is approximately #4000# miles

Thus, the Earth's surface area is roughly:

#4 pi 4000^2 ~~ 200# million square miles

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Answer 2

Claire Anctil

The total surface area of the Earth is approximately 510.1 million square kilometers.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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