Asked by Danielle

The earth is approximately a sphere. It's diameter is about 12730km. Water covers approximately 66% of the earths surface. How many square kilometers of land covers the earths?
Answered by Steve
a = pi d^2 = pi * 12730^2 = 5.09*10^8
66% of that is 3.36*10^8
Answered by Danielle
Thank you Steve
Answered by jeric
lola ate kuya tatay nanay
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