page_title: Inscribed sphere
hierarchical_section_title: Inscribed sphere
caption_attribution_description: Deutsch: Tetraeder, Größen
context_page_description: In geometry, the inscribed sphere or insphere of a convex polyhedron is a sphere that is contained within the polyhedron and tangent to each of the polyhedron's faces. It is the largest sphere that is contained wholly within the polyhedron, and is dual to the dual polyhedron's circumsphere.
  The radius of the sphere inscribed in a polyhedron P is called the inradius of P.
context_section_description: In geometry, the inscribed sphere or insphere of a convex polyhedron is a sphere that is contained within the polyhedron and tangent to each of the polyhedron's faces. It is the largest sphere that is contained wholly within the polyhedron, and is dual to the dual polyhedron's circumsphere.
  The radius of the sphere inscribed in a polyhedron P is called the inradius of P.
caption: Tetrahedron with insphere in red (also midsphere in green, circumsphere in blue)
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