In hyperbolic geometry, the defect of is .
In spherical geometry, the defect of is .
Note that, in both hyperbolic and spherical geometry, the area of a is equal to its defect.
|Date of creation||2013-03-22 16:05:22|
|Last modified on||2013-03-22 16:05:22|
|Last modified by||Wkbj79 (1863)|