radius

diagrams

line segment of

path on GitHub

https://github.com/davepinch/pinchy.cc/blob/master/content/topics/mathematics/shapes/radius/radius.md

random

When the vulnerability of, or threat to, specific classified information was exceptional, and the normal criteria for determining eligibility for access to classified information were insufficient to protect the information from unauthorized disclosure, the United States could establish Special Access Programs (“SAPs”) to further protect the classified information. The number of these programs was to be kept to an absolute minimum and limited to programs in which the number of persons who ordinarily would have access would be reasonably small and commensurate with the objective of providing enhanced protection for the information involved. Only individuals with the appropriate security clearance and additional SAP permissions were authorized to have access to such national security information, which was subject to enhanced handling and storage requirements.

tags

geometry

Wikidata

https://www.wikidata.org/wiki/Q173817

Wikipedia

Radius (Wikipedia) In classical geometry, a radius (pl.: radii or radiuses) of a circle or sphere is any of the line segments from its center to its perimeter, and in more modern usage, it is also their length. The name comes from the Latin radius, meaning ray but also the spoke of a chariot wheel. The typical abbreviation and mathematical variable name for radius is R or r. By extension, the diameter D is defined as twice the radius