Your answer is 192.5 cubic centimetres
To find the volume of a prism you need to find the cross-sectional area, in this case the area of the triangle at the front, and multiply it by the prism’s depth.
The equation for the area of a triangle is (base × height)/2, so using that we get (7 × 5)/2 = 35/2 = 17.5 cm²
Now we need to multiply this by the depth, which gives us:
17.5 × 11 = 192.5 cm³
I hope this helps!