height: 8.4 diameter: 3.5 find the volume
\small{\text{ $ \begin{array}{rcl} $ Volume $ = v &=& \pi*(\frac{d}{2})^2*h \\ v & = & 3.141592654 * 4.2^2 * 3.5 \\ v & = & 193.962 $ units $ \end{array} $ }}
What kind of polyhedron?