"There are three different types of map projections that have different uses. A cylindrical projection is a type of map in which a cylinder is wrapped around sphere, like a globe. The the cylinder is unwrapped onto a flat surface. A conic projection is a type of map in which a cone is wrrapped around sphere and the details are projected on a cylindrical surface. A planar projection is a type of
. map in which details are projected onto a plane. http://www.enchantedlearning.com/geography/glossary/projections.shtml"
