Asked by tiffany

The earth is approx. a sphere. Its diameter is about 12 730 km. Water covers approx. 66 percent of the earths surface. How many square kilometres of land covers the earth?
Answered by Ms. Sue
Surface Area = 4 * pi * r^2

A = 4 * 3.14 * 6,365^2

A = 508,846,106


0.34 * 508,846,106 = ?



Answered by tiffany
thank-you soooo much ms.sue
Answered by Ms. Sue
You're very welcome, Tiffany.

Answered by dee
where did you get the 0.34 from?
Answered by Rachel
The world is made up of land and earth. If there is 66% water then there can only be 34% land (whats left). 66% water plus 34% land = 100% of what makes up the earth.
Answered by binyamin
Ms sue. you are a saint, thank you for the clear answers back in 2012. i hope you're doing great still
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