Protractor the UK. Protractor A protractor is a measuring instrument, typically made of transparent plastic or glass, for measuring angles. Most protractors measure angles in degrees (°). Radian-scale protractors measure angles in radians. Most protractors are divided into 180 equal parts. Some precision protractors further divide degrees into arcminutes. They are used for a variety of mechanical and engineering-related applications. One common use is in geometry lessons in schools. Some protractors are simple half-discs. More advanced protractors, such as the bevel protractor, have one or two swinging arms, which can be used to help measure the angle. A bevel protractor is
OMB Circular A-130 of information in the operation of Federal programs. The initial release of the Circular provided a policy framework for information resources management (IRM) across the Federal government. Since the time of the Circular's first release in 1985, Congress has enacted several additional laws and OMB issued several guidance documents that related to information technology management in federal agencies. To account for these new laws and guidance, OMB has revised the Circular three times, in 1994, 1996, and 2000. A complete rewrite of the Circular to both update and to correct for known deficiencies has been considered since at least 2005,