Find the surface area formula for a circular paraboloid with height h and radius r.

It is formed by rotating y = (x^2)(h)/(r^2), 0 <= x <= r around the y-axis.

So far I've come to here and am stuck:

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- Nov 11th 2009, 12:07 PMjimiiSurface Area of a Circular Paraboloid
Find the surface area formula for a circular paraboloid with height h and radius r.

It is formed by rotating y = (x^2)(h)/(r^2), 0 <= x <= r around the y-axis.

So far I've come to here and am stuck: - Nov 11th 2009, 01:14 PMjimii
Would a possible 'u-substitution/rationalization' trick work here? I'm still peckin at this, any help is much appreciated!