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
Victims of Terrorist Attack on the Pentagon Memorial all the victims of the terrorist attack on the Pentagon qualified for burial at Arlington National Cemetery. Families of those who did often chose to bury the remains of their loved ones at a private cemetery. Sixty-four individuals who died at the Pentagon were buried at Arlington, and 57 of them were interred in Section 64, their headstones facing the Pentagon about away to the southeast (visible through a few trees). No remains could be identified for five victims: In some cases, additional remains were discovered and identified after a person had already been buried by their families. Some families