(41) Bulk Cylindrical Tank

[Albert Chan]

Hi, Dieter

True. Slant bottom volume only need 1 formula.
Perhaps the author don't like negative angles.

Dome Top cross section is technically not circular, thus no real radius.
(where dome and cyclinder got welded, both look sloped vertical, but r > v0)

Graphical R is to find the "best" fit ... (assumed shaped like spherical cap)

It would be much easier if gallon scale were marked directly to the tank ...
(At the minimum, provide customer with a level vs gallon plot)