Circular segment Circular segment In geometry, a circular segment (symbol: ⌓) is a region of a circle which is "cut off" from the rest of the circle by a secant or a chord. More formally, a circular segment is a region of two-dimensional space that is bounded by an arc (of less than 180°) of a circle and by the chord connecting the endpoints of the arc. Let "R" be the radius of the circle, "θ" the central angle in radians, α is the central angle in degrees, "c" the chord length, "s" the arc length, "h" the sagitta (height) of the
OMB Circular A-126 OMB Circular A-126 OMB Circular A-126, revised May 22, 1992, is a Government circular that introduces standards and policies to minimize the cost and improve the management and use of United States Government aircraft. Specifically, OMB Circular A-126 addresses the acquisition, management, usage, cost accounting, and disposal of government aircraft. All policies presented by this circular apply to Executive Agencies, with special policy covering the travel by senior officials or non-Federal travelers on government aircraft that is government-owned, leased, chartered or rented and any related services that apply. The only exceptions are aircraft that is in use by or in