Question
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?
Answers
Ms. Sue
Surface Area = 4 * pi * r^2
A = 4 * 3.14 * 6,365^2
A = 508,846,106
0.34 * 508,846,106 = ?
A = 4 * 3.14 * 6,365^2
A = 508,846,106
0.34 * 508,846,106 = ?
tiffany
thank-you soooo much ms.sue
Ms. Sue
You're very welcome, Tiffany.
dee
where did you get the 0.34 from?
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.
binyamin
Ms sue. you are a saint, thank you for the clear answers back in 2012. i hope you're doing great still