The volume of a triangular prism is the area of the base multiplied by the height.
Let's first identify our values:
20 in = height of prism
12 in = base of triangle
8 in = height of triangle
First, we need to calculate the area of the triangle. To calculate the area of the triangle, we multiply the base of the triangle by the height of the triangle. In this case, the base is 12 and the height is 8 so 12 × 8 = 96 and then we divide 96 by 2 and we will get a quotient of 48.
Finally, we will multiply the area of the triangle which is 48 by 20.
48 × 20 = 960
.