V=1/3·π·h·(R^2+r^2+R·r)R u m f a n g = 1 3 ⋅ π ⋅ h ⋅ ( R 2 + r 2 + R ⋅ r )
s=√(h^2+(R-r)^2 )s = h 2 + ( R − r ) 2
R: store radius r: lille radius
Krummeoverflade=π·(R+r)·sK r u m m e o v e r f l a d e = π ⋅ ( R + r ) ⋅ s Eller Krummeoverflade=π·(R+r)·√(h^2+(R-r)^2 ) K r u m m e o v e r f l a d e = π ⋅ ( R + r ) ⋅ h 2 + ( R − r ) 2
Overflade i alt = krumme overflade + top + bund
