Calculate the volumes of the samples used in procedure step 2. Record the calculated volumes in table 2.2 why would we not find the volume of the bolt by this method

For the bar the calculate volume is:
[tex]V=l\times w\times h=9.7\text{ cm }\times1.6\text{ cm }\times1.0\text{ cm = 15.5 cm}^3[/tex]For the rod the calculate volume is:
[tex]V=\pi\times r^2\times h[/tex][tex]V=\pi\times(\frac{}{}\frac{1.7}{2}cm)^2\times10.5\text{ cm = 23.8 cm}^3[/tex]