Definition:Circumscribe/Sphere around Polyhedron

Definition

A sphere is circumscribed around a polyhedron when its surface passes through each of the vertices of that polyhedron:

Also known as

As well as circumscribed around, the following can also be seen:

• circumscribed outside
• circumscribed about
• circumscribed by

The more archaic circumscribed without can also occasionally be encountered.

Also see

Note that such a polyhedron can also be described as being inscribed in the sphere.

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): circumscribed
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): circumscribed