The volume is 16 cubic units.
It is: 8*3*5 = 120 cubic feet
octgonal prism
I'm going to assume you mean a rectangular container. Volume for a rectangular prism: Volume = length*width*height. So, 20 in * 16 in * 10 in = 3,200 cubic inches.
Octagonal prism - Number of vertices-16 Number of rectangular faces-8 Total number of faces-10
Volume of a rectangular prism = length * width * height = 16cm*10cm*5cm = 800cm3
A sphere with a radius of 16 units has a volume of 17,157.28 cubic units.
64 (16*24*12)/(6*4*3)=64
Cylinder tank: Volume=(pi)*(radius)^2*(height)= about 25.12 cubic feet rectangular prism tank= (width)*(length)*(depth)= 16 cubic feet
The answer is 8, that's the only logical outcome.
An octagonal prism.
Assuming there are no curved sides, it is a decahedron. It is likely to be an octagonal prism but there may be other configurations.