Sphere (English)
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Definition (keystage 2)
A perfectly round ball, such that every point on the surface of the sphere is the same distance away from the centre of the sphere.
Definition (keystage 3)
A ball. A perfectly round 3 dimensional solid. The set of points in space which are at distance r from fixed point C is a sphere with centre C and radius r.
Relations
- broader:
- (en) Rotundum
- (en) Solid
- narrower:
- (en) Ball
- (en) Circumsphere
- (en) Dandelin spheres
- (en) Hemisphere
- (en) Insphere
- (en) Small circle
- references:
- (en) Circle
- (en) Solid geometry
- referenced:
- (en) Equation of a sphere
- (en) Globe
- (en) Hypersphere
- (en) Lune
- (en) Power of a point
- (en) Small circle
- (en) Spherical triangle
- (en) Spherical zone
- (en) Surface area of a sphere
- (en) Uniform polyhedron
- (en) Volume of a sphere
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