central angle


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central angle

n.
An angle having its vertex at the center of a circle.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

central angle

n
(Mathematics) an angle whose vertex is at the centre of a circle
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

cen′tral an′gle


n.
an angle formed at the center of a circle by two radii.
[1900–05]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

cen·tral angle

(sĕn′trəl)
An angle formed by two rays from the center of a circle, with the center forming the vertex.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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References in periodicals archive ?
The equation indicates that when the sum of folding angle [alpha] and corresponding central angle [theta] is equal to 180[degrees], the scissor elements can be arranged around the ring.
In this study it was found that the RCPmi covered the posterior atlanto-occipital interspace and was fan-shaped with a (60.7 [+ or -] 4.4)-degree central angle. It presented with significant length variations according to the variation of the scanning angles by the MRI.
(3) The aerodynamic roughness is related to the topology of the roughness elements in the upwind sector, which can be described by three parameters: the central angle [theta], the radius r, and the opening angle [alpha] [13, 19].
The central angle will be restricted within (-[pi]/4, [pi]/4] or (37[pi]/4, 5[pi]/4], as shown in Figure 2(b).
The four parts have similar profile which consists of two pieces of circular arc; the central angle of one piece of circular arc is 240[degrees] and the radius is r, while the radius of another piece of circular arc is R, as shown in Figure 2.
The purpose of central angle of small arc [beta] is to form the overlap area S and its outlet shape.
In another word, under the round model, it uses the relationship between changes in a central angle and component variation under each time index to establish a FI degradation model; under the linear model, it utilizes the relationship between changes in Euclidean distance and component variation under each time index to build the FI degradation model.
At the same time, both working bands can be separately adjusted by simple central angle of the up Y-shaped strip.
These holes have the same diameter d, and are equally spaced with the same central angle [zeta] in the same annulus with a specific thickness a, where for different concentric annuli the central angle [zeta] may be different.

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