jding713 jding713

29-03-2018
Mathematics

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About 70% of Earth's surface is covered by water. If the diameter of earth is about 12,750km, find the area not covered by water to the nearest 100,000km^2.

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sqdancefan sqdancefan

29-03-2018

A ≈ 0.30πd² ≈ 153,200,000 km²

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