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December 22, 2014

December 22, 2014

Posted by **Brandy Moore** on Monday, February 23, 2009 at 4:19pm.

- geometry -
**Damon**, Monday, February 23, 2009 at 4:50pmI 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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