My teacher says its simple but i cant od it can you? In cold Climate areas, trucks are used to disperse salt on the roads in order to de-ice the roads, making them safe for travel. In some cases, cone-shaped sheds, made in three different sizes, are used to store the salt during off-season, or until the roads need to be de-iced. Use the formula for the volume of a cone to complete the table below. Use 3.14 for .