: Matemáticas: central angle

geometry > Euclidean geometry > trigonometry > angle > central angle

central angle

A central angle is an angle whose apex (vertex) is the center O of a circle and whose legs (sides) are radii intersecting the circle in two distinct points A and B. Central angles are subtended by an arc between those two points, and the arc length is the central angle of a circle of radius one (measured in radians). The central angle is also known as the arc's angular distance. The arc length spanned by a central angle on a sphere is called spherical distance.
(Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Central_angle)

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