SOLUTION: Assume the radius of the Earth is 6370 km and the Earth is a sphere. What is the surface area?

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Question 248410: Assume the radius of the Earth is 6370 km and the Earth is a sphere. What is the surface area?
Found 2 solutions by checkley77, richwmiller:
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
A=4PIR^2
A=4*3.14*6370=20.56*6370=130,967.2 KM^2 IS THE SURFACE AREA.

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
surface area of a sphere is 4*pi*r^2