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whatlifeforme
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Homework Statement
Use Pappus' Theorem for surface area and the fact that the surface area of a sphere of radius c is 4(pi)c^2 to find the centroid of the semicircle x= sqrt ( c^2 - y^2)
Homework Equations
S = 2 (pi) * p * L
where s=surface area; p=distance from axis of revolution; L= length of the arc
The Attempt at a Solution
1. centroid of semicircle. should i put the equation in circle form, and attempt to solve from that?