Accreditation is a process in which school standards are evaluated by an accreditation agency. In the United States, this process is not completed by the federal government, but by states or private companies with varying rules and standards. Different groups promote accreditation for homeschoolers.
The circle is the simplest and best known conic section. As a conic section, the circle is the intersection of a plane perpendicular to the cone's axis. The geometric definition of a circle is the locus of all points a constant distance r {\displaystyle r} from a point ( h , k ) {\displaystyle (h,k)} and forming the circumference (C).
conic projection, conical projection-a map projection of the globe onto a cone with its point over one of the earth's poles. equal-area map projection, equal-area projection-a map projection in which quadrilaterals formed by meridians and parallels have an area on the map proportional to their area on the globe.