I realise my last post had one error I used height to mean something different
to on the diagram. My usage of height actually represents half of the height on
the diagram. I.e where i say height i mean 3m not 6m. Sorry for that but didn't
have both pages open at once so was kind of doing it from memory off the
diagram. thus my final solution should have read: Volume =
(4*pi*(0.5*height)^3)/3.
Apologies, Malcolm
