Answer:
875 ft³
Step-by-step explanation:
First, let's break it down into three different sections.
Starting with the cube on the bottom and then the rest of the Rectangular Prism.
The formula for Volume Cube V = a³
The formula for Volume of Rectangular Prism: V = lwh
From the picture we can see that the bottom is a cube with a lenght of 5 ft thus V = 5³ = 125 ft³
The second Rectangular Prism in the middle has a lenght of 20 ft (15 + 5), a width of 5 ft and a height of 5 ft. Use the formula above 20x5x5 = 500 ft³
The top Rectangular Prism has a lenght & with of 5 ft and a height of 10 ft.
So again 5x5x10 = 250 ft³
Now all we need is to add them all together:
125 + 500 + 250 = 875 ft³
