Central Angle


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central angle

[′sen·trəl ′aŋ·gəl]
(mathematics)
In a circle, an angle whose sides are radii of the circle.

Central Angle

 

an angle formed by two radii of a circle. In Figure 1 angle AOB is a central angle. The number of degrees in

Figure 1

a central angle is equal to the number of degrees in the intercepted arc.

References in periodicals archive ?
Neglect other modes and choose arbitrary point 1 with central angle [[alpha].
z] is the modal shape of node (r, [alpha], z) in direction R, T or Z; A denotes the amplitude of the modal shape; n is the amount of nodal lines; [alpha] stands for the central angle and [theta] represents the initial phase angle.
The purpose of central angle of small arc [beta] is to form the overlap area S and its outlet shape.
For instance, the installation angle and the central angle of small arc construct the overlap area together; when a parameter value is changed, another parameter is inevitably under the influence.
The data of central angle, plant height, wall thickness and cuticle thickness were submitted to the Bartlett and Shapiro-Wilk tests followed by an analysis of variance ANOVA.
There were significant differences in the central angle among the cultivars (F = 3.
eff] = n(r), the central angle [zeta] can be derived as
This analytical formula fully describes the distribution rule of the drill holes according to the annulus k and the associated central angle [zeta], allowing the GRIN metamaterial lens to be automatically designed In another word, when the geometric parameters of horn antenna and thickness of lens are given, the formation of the lens is decided, which means that to antennas with different parameters, we can get the construction of lens only by substituting the geometrical without reconsidering the distribution of holes.
Given the chord length and still they have trouble finding the central angle (see Figure 7), we should draw the figure for them.
The horizontal lines is marked by a distinctive left bend with a radius of 95 m and a central angle of more than 180 degrees.
The central angles will be those with a vertex at this intersection, whose rays pass through adjacent vertices of the polygon.
The same can be said about the central angles of the slices.

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