NounSingular radius radius (plural radii or radiuses)
Related termsFrom Wiktionary under the GNU Free Documentation License. In classical geometry, a radius of a circle or sphere is any line segment from its center to its perimeter. By extension, the radius of a circle or sphere is the length of any such segment, which is half the diameter. More generally — in geometry, science, engineering, and many other contexts — the radius of something (e.g., a cylinder, a polygon, a mechanical part, a hole, or a galaxy) usually refers to the distance from its center or axis of symmetry to a point in the periphery: usually the point farthest from the center or axis (the outermost or maximum radius), or, sometimes, the closest point (the short or minimum radius). If the object does not have an obvious center, the term may refer to its circumradius, the radius of its circumscribed circle or circumscribed sphere. In either case, the radius may be more than half the diameter (which is usually defined as the maximum distance between any two points of the figure). The inradius of a geometric figure is usually the radius of the largest circle or sphere contained in it. The inner radius of a ring, tube or other hollow object is the radius of its cavity. The radius of a regular polygon (or polyhedron) is the distance from its center to any of its vertices; which is also its circumradius. The inradius of a regular polygon is also called apothegm. In graph theory, the radius of a graph is the minimum over all vertices u of the maximum distance from u to any other vertex of the graph. The name comes from Latin radius, meaning "ray" but also the spoke of a chariot wheel. The plural in English is radii (as in Latin), but radiuses can be used, though it rarely is. From Wikipedia under the
GNU Free Documentation License The radius of a solid sphere is twice the radius of a second solid sphere. What is the ratio of? Q. The radius of a solid sphere is twice the radius of a second solid sphere. What is the ratio of a) their volumes, b) their surface areas? Asked by Jennifer T - Mon May 5 22:30:10 2008 - - 2 Answers - 0 Comments A. vb/vx=(rb/rs)^3 vb:vs=9:1 ab/as=(rb/rs)^2 ab:as=4:1 Answered by someone else - Mon May 5 22:33:32 2008 How do I find the radius and energy of hydrogen atom using gravitional force? Q. If electron is bound to proton by gravitional force rather than electric force. How do I find the radius and energy of the first Bohr orbit? Asked by sultan2377 - Thu Dec 14 10:16:56 2006 - - 1 Answers - 0 Comments A. You would solve the Schroedinger equation replacing the potential -1/(4 pi epsilon) e^2/r with -GMpme/r (Mp = mass proton, me = mass electron). However, there will be no bound solutions because kT will be larger than the binding energy. Gravity is far too weak to have an effect. Answered by epidavros - Thu Dec 14 11:36:55 2006 What is the radius of curvature of the mirror?
Q. When viewed in a convex mirror, the image of a setting sun is a virtual image. The image lies 12.0 cm behind the mirror. what is the radius of curvature of the mirror? Asked by heffa - Mon Jun 29 15:17:45 2009 - - 2 Answers - 0 Comments From Yahoo Answer Search: "radius"  news.google.com SBWire (press release) The partnership, which started at Axis/ Radius Nightclub and prospered across much of the Scottsdale nightlife scene, has endured for years. ... and more » news.google.com Palm Beach Post The Richardsons were among 25 men and women living within a roughly 15-mile radius of Opa-Locka who in 2006 and 2007 traveled an hour north to purchase ... and more » news.google.com Daily Comet Questions arose among local aviators Friday as to why Falgout never radioed air-traffic control in Houma to confirm he left the five-mile radius that runs ... and more » From Google News Search: "radius"  brookdalecc.edu 512px x 384px | 16.50kB [source page] smfibula jpg 17 Jun 2002 15 48 15k tibia prox ant jpg 16 Oct 2002 15 03 16k smwhole radius jpg 28 May 2002 15 34 17k smscapula anterior jpg 28 May 2002 15 32 18k  david.durrenberger.free.fr 299px x 450px | 24.70kB [source page] of Radius Media Mag Here are some samples of the mag + the dvd The Mag is printed on a high quality paper and the articles are really nice we re waiting for the second issue impatiently More photos infos From Yahoo Image Search: "radius"  twocentsapoint.blogspot.com Xan Vongsathorn Fri, 30 Oct 2009 21:07:01 GM radius. . How many people are within a hundred feet of you right now? If all we had was the answer to this question for everyone in the world, what could we recover? How much would you pay for a device that told you how many people were ...  our.risd.edu lsilande Fri, 09 Oct 2009 13:06:01 GM our.risd.edu is a place where we talk about our unique RISD community.  bid2load.com unknown ue, 27 Oct 2009 06:54:04 GM Transport 4000l per day or 1 000 000l per month within a local . radius. +-45km in Johannesburg. From Google Blog Search: "radius" |
