SOLUTION: The area of the cross section of a sphere at the largest point is 100π square miles. What is the total surface area of this sphere? Leave your answers in terms of π.
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Question 1043643: The area of the cross section of a sphere at the largest point is 100π square miles. What is the total surface area of this sphere? Leave your answers in terms of π. Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! The cross-section is a circle, and its radius is 10 square miles, so that the area of the cross-section, pi*r^2, is 100*pi square miles.
The area of a sphere is 4*pi^r^2=400*pi square miles.
