Answer:
The Volume of right triangular prism is 240 cubic inches
Explanation:
Volume of right triangular prism =

In triangle ABC
AC = Hypotenuse = 13 in.
AB = Height
BC = Base = 12 in.
Using Pythagoras theorem

5=Perpendicular
Area of base =

Height of prism = 8 in
Volume of right triangular prism =
Volume of right triangular prism =

Hence The Volume of right triangular prism is 240 cubic inches