The pyramid top has a height of 9 feet, and the entire obelisk as a height of 60 feet, the width of the base is 7 feet what is the volume of the obelisk in cubic feet?

The volume of the obelisk will be given by:

V = (volume of pyramid) + (volume of cuboid)

volume of pyramid will be:

1/3 (base area) * height

=1/3*9*7*7

=147 cubic ft

volume of the cuboid will be:

volume = (length*width*height)

v = (7*7 * (60-9))

v=2499 cubic ft

total volume of the obelisk will be:

V = (2499+147) = 2446 cubic feet