Sphere

A sphere is the set of all points in three-dimensional space that are located at a fixed distance from a given point.

Sphere is an elementary-school-level concept. It is listed in the California State Standards for kindergarten.

Classroom Articles on Solid Geometry

	Cone	Polyhedron
	Convex Hull	Prism
	Cross Section	Pyramid
	Cube	Solid Geometry
	Cylinder	Surface
	Dodecahedron	Surface Area
	Icosahedron	Tetrahedron
	Octahedron	Volume
	Platonic Solid

Classroom Articles on Geometry (Up to Elementary-School Level)

	Acute Angle	Octagon
	Angle	Parallel
	Area	Parallelogram
	Circle	Pentagon
	Decagon	Perimeter
	Diameter	Perpendicular
	Dodecagon	Point
	Equilateral Triangle	Polygon
	Geometric Construction	Quadrilateral
	Hendecagon	Radius
	Heptagon	Rectangle
	Hexagon	Regular Polygon
	Isosceles Triangle	Right Triangle
	Nonagon	Square
	Obtuse Angle	Triangle