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How might one manage to find the surface area and volume of the following constructs?

Rotini: A geometric figure I've found to be similar is the helicoid. However, the helicoid (having been formed from a 2D plane) has an edge width equal to epsilon, whereas the edges of a fully 3D rotini-like construct would be roughly catenarian in shape. 

Fusillibucati/Cavatappi: The only difference between the two is length. Cavalieri's principle could possibly be at play here, but the topography could potentially suggest otherwise. 

Campanelle: No hints for this one, good luck. 

Casarecce/Gemelli: The only difference between them is the topographic helical pitch. Cavalieri's principle is more than likely at play here, but you might have to use it a bit differently. 

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