is anyone able to help me?

Answer:
The volume of this triangular prism is 20[tex]cm^{3}[/tex]
Step-by-step explanation:
Just like it is shown in the picture we can use the formula for the volume of a triangular prism.
[tex]V = \frac{1}{2}bhl[/tex]
In our case b = 5cm, h = 2 cm, l = 4cm. Now we just plug in the values and get...
[tex]V = \frac{1}{2}bhl\\\\[/tex]
[tex]V = \frac{1}{2}(5)(2)(4)[/tex]
[tex]V = 20cm^{3}[/tex]
Therefore the volume of the triangular prism is 20[tex]cm^{3}[/tex].