Sum of angles of a triangle to zero. For a spherical triangle, the sum of the angles is greater than 180° and can be up to 540°. Specifically, the sum of the angles is where "f" is the fraction of the sphere's area which is enclosed by the triangle. Note that spherical geometry does not satisfy several of Euclid's axioms (including the parallel postulate.) Angles between adjacent sides of a triangle are referred to as "interior" angles in Euclidean and other geometries. "Exterior" angles can be also defined, and the Euclidean triangle postulate can be formulated as the exterior angle theorem. One can also consider the
Ministry of the Interior (Italy) stucco decoration. In 1961, the headquarters of the Office of Prime Minister was separated from the Ministry of the Interior and transferred to Palazzo Chigi, where it remains today. Ministry of the Interior (Italy) The Ministry of the Interior () is a government agency of Italy, headquartered in Rome. It is cabinet-level ministry of the Italian Republic. As of 1 June 2018, Matteo Salvini is the minister. The Ministry of the Interior is responsible for internal security and the protection of the constitutional order, for civil protection against disasters and terrorism, for displaced persons and administrative questions. It is host