In general, the volume of a triangular prism is given by the formula below
[tex]\begin{gathered} V=\frac{\text{bhl}}{2} \\ b\to\text{ basis of the triangular base} \\ h\to\text{ height of the triangular base} \\ l\to\text{ height of the prism} \end{gathered}[/tex]
Therefore, in our case,
[tex]\begin{gathered} b=9,h=5.2,l=6 \\ \Rightarrow V=\frac{9\cdot5.2\cdot6}{2}=140.4 \end{gathered}[/tex]
The volume of the prism is 140.4cm^3
