Four golf balls are packaged in a cylindrical container as shown below. The balls just touch the top, bottom, and sides of the cylinder. The diameter of each ball is 4cm. What is the volume of the cylinder rounded to the nearest cubic centimeter? What is the total volume of the four balls rounded to the nearest cubic centimeter? What percent of the volume of the container is occupied by the four balls?

• Professor1994: Hello,
  Please, see the attached files.
  Thanks.