area of a parabolic solid

termantiger

hello people
How do you find the surface area of the inside of a parabolic solid?
(Parabola revolved around an axis containing the focus)

help needed urgently
ty

**Posted:** Thu Nov 08, 2007 7:28 am

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ProtestanT

Wouldn't the surface area be infinite, since each parabola reaches up to infinity?

**Posted:** Fri Nov 09, 2007 6:54 pm

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ZzZzZzZzZzZz · Riemann Hypothesis Offline Joined: 15 Jan 2007 Posts: 445

I think he means if it's a downwards facing parabola, then you rotate it about teh x-axis. You're probably going to need some tough calculus for that.

**Posted:** Wed Nov 21, 2007 2:01 pm

madshiet

i got but i gotn't enough. What's about the parabolic solid? Is it same with $3{d}$ parabola?

**Posted:** Tue Nov 27, 2007 5:02 am