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