Statements (16)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:butter
gptkb:geometry |
| gptkbp:describedBy |
gptkb:Descartes'_Theorem
|
| gptkbp:field |
gptkb:geometry
gptkb:Euclidean_geometry |
| gptkbp:hasEquation |
k1 + k2 + k3 + k4 = 1/2 (k1^2 + k2^2 + k3^2 + k4^2) (for curvatures)
|
| gptkbp:hasProperty |
tangent to three given circles
|
| gptkbp:hasType |
gptkb:inner_Soddy_circle
gptkb:outer_Soddy_circle |
| https://www.w3.org/2000/01/rdf-schema#label |
Soddy circle
|
| gptkbp:namedAfter |
gptkb:Frederick_Soddy
|
| gptkbp:relatedTo |
gptkb:Apollonius'_problem
gptkb:Descartes'_Theorem tangent circles |
| gptkbp:bfsParent |
gptkb:Sir_Frederick_Soddy
|
| gptkbp:bfsLayer |
5
|