Answer:
[tex]108 cm^3[/tex]
Step-by-step explanation:
Volume of the prism will be the surface of one of the trapezoidal faces, time its depth.
Let's find the area of the base first: it's a prism, so it's the sum of bases, times the height, halved:
[tex]A = \frac12(B+b)h = \frac12 (5+3)\times3 = \frac12\times8\times3 =12[/tex]
We're almost there: we just have to multiply the result for the height of the prism - in our case the depth since it's laying on the side - and that's the volume
[tex]V= Az = 12\times9 = 108[/tex]
