In geometry, the (angular) defect (or deficit or deficiency) means the failure of some angles to add up to the expected amount of 360° or 180°, when such...

Look up defect in Wiktionary, the free dictionary. Defect or defects may refer to: Angular defect, in geometry Birth defect, an abnormal condition present...

The angular diameter, angular size, apparent diameter, or apparent size is an angular distance describing how large a sphere or circle appears from a...

must depend on the triangle. Its difference from 180° is a case of angular defect and serves as an important distinction for geometric systems. In Euclidean...

for polyhedra, is the (angular) defect; the analog for the Gauss–Bonnet theorem is Descartes' theorem on total angular defect. Because (Gaussian) curvature...

respectively. The angular deficiency at the vertex of a polyhedron is the difference between the sum of the face-angles at that vertex and 2π. The defect, δ, at...

Angular cheilitis (AC) is inflammation of one or both corners of the mouth. Often the corners are red with skin breakdown and crusting. It can also be...

wedge that was removed is called the angular defect of the vertex; it is a positive number less than  2π. The defect of a polyhedron vertex can be measured...

Descartes' theorem (4 tangent circles) Descartes' theorem on total angular defect Folium of Descartes List of things named after René Descartes Paris...

conversely is proportional to its defect, as established by Johann Heinrich Lambert. Descartes' theorem on total angular defect of a polyhedron is the polyhedral...