The volume of any straight prism is the area of the shape base multiplied by the length. In this case, our shape is a triangle and the area of a triangle is
where b is the base and h is the height. In this case, the base is 16 and the height is 8.
So, now we know the area of the shape is 64. We need only multiply this by the length of the prism, in this case 22.
Therefore, the final answer is 1408
.