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-21 contract. This section covers permissible and nonpermissible costs involved in a project. To simplify, the following costs are allowed (within the circular guidelines): Anything outside the scope of these costs is typically not allowed unless it falls under one of the specifically mentioned exceptions within the circular. This is a short form that requires the named institution, signature, name of official, title, and date, that when collected certifies that all costs have been accounted for and are within the cost guidelines, under penalty of perjury. OMB Circular A-21 OMB Circular A-21 is a Government circular that sets forth the rules