Find the surface area of the unit ball.
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Originally Posted by learn18 Find the surface area of the unit ball. Using the formula or calculus?
The Surface Area of a sphere is:
A = 4pi*r^2
Calculus, this was a review problem that I cannot do for my calculus final.
Originally Posted by slowcurv99 Calculus, this was a review problem that I cannot do for my calculus final. Do you want me to do this by rotating a circle? If not, what method are you guys using right now?
Well I dont know about him, But I have a review problem for my final in calculus 4 that asks that question and states nothing else...So I am assuming you can do it whichever way? But I have no clue how to do it.
Solution using calculus.(see attach)
Using geometry is easy.
Surface area is 4 pi radius^2, since the radius is 1, the answer is 4 pi
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