Which volume formula or formulas show(s) a joint variation?

I $\displaystyle{V}={l}{w}{h}\usepackage{cmbright}\Huge\$

II $\displaystyle{V}=\frac{{1}}{{3}}\pi{{r}}^{{2}}{h}\usepackage{cmbright}\Huge\$

III $\displaystyle{V}={B}{h}\usepackage{cmbright}\Huge\$