Posted by Brandy Moore on Monday, February 23, 2009 at 4:19pm.
I need more information. Are you talking about sailboats or airplanes? Airfoils? I have no idea what ofall the shape means.
As a partial reply to what I guess your question might be consider a beachball.
the surface area is the area of the sphere, the whole outside
Sa = 4 pi r^2
the lateral area is what you see looking from the side
La = pi r^2
the cross sectional area is what you see looking from the front (the same as the side for a sphere) pi r^2
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