SOLUTION: Assuming that a planet is a perfect sphere with a circumference of 20771 km and an average density of 2.41 g/mL, what is its approximate mass?

Question 98623: Assuming that a planet is a perfect sphere with a circumference of 20771 km and an average density of 2.41 g/mL, what is its approximate mass?
Answer by Nate(3500) (Show Source): You can put this solution on YOUR website!
The circular circumference of the sphere is ~> 2r
2r = 20771
r is approx. 3,305.81 km
Sphere Volume is ~> (4/3)r^3
(4/3)r^3
Volume is approx. 1.51 x 10^11 km^3 or approx. 1.51 x 10^26 mL
Density*Volume = Mass
3.647021 x 10^26 grams
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