SOLUTION: The earth is approximately a sphere. It's diameternal is about 12 730km. Water covers approximately 66% of the earth's surface. How many squart kilometres of land cover the earth?

Algebra ->  Surface-area -> SOLUTION: The earth is approximately a sphere. It's diameternal is about 12 730km. Water covers approximately 66% of the earth's surface. How many squart kilometres of land cover the earth?       Log On


   



Question 1036888: The earth is approximately a sphere. It's diameternal is about 12 730km. Water covers approximately 66% of the earth's surface. How many squart kilometres of land cover the earth?
Thank you!

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Area of a sphere=4*pi*r^2; r= (1/2)d=6365 km
Area of land is that result *0.34=173,095,428 km^2