angle subtended at A by B

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• Angle — This article is about angles in geometry. For other uses, see Angle (disambiguation). Oblique angle redirects here. For the cinematographic technique, see Dutch angle. ∠, the angle symbol In geometry, an angle is the figure formed by two rays… …   Wikipedia

• angle of view — The angle subtended by lines that pass through the center of the lens to diametrically opposite corners of the plate or film used. The angle of view of a camera varies with the photographed image and the bellows extension. The amount of ground… …   Aviation dictionary

• Subtended arc — In geometry, an arc subtended by an angle is a curve whose endpoints are on the angle s two rays. The precise meaning varies with the context. For example, one may speak of the arc of a circumference subtended by an angle whose vertex is a point… …   Wikipedia

• Angle of parallelism — In hyperbolic geometry, the angle of parallelism Φ is the angle at one vertex of a right hyperbolic triangle that has two asymptotic parallel sides. The angle depends on the segment length a between the right angle and the vertex of the angle of… …   Wikipedia

• Subtended — Subtend Sub*tend , v. t. [imp. & p. p. {Subtended}; p. pr. & vb. n. {Subtending}.] [L. subtendere; sub under + tendere to stretch, extend. See {Tend}.] To extend under, or be opposed to; as, the line of a triangle which subtends the right angle;… …   The Collaborative International Dictionary of English

• Solid angle — The solid angle, Ω , is the angle in three dimensional space that an object subtends at a point. It is a measure of how big that object appears to an observer looking from that point. For instance, a small object nearby could subtend the same… …   Wikipedia

• Inscribed angle theorem — In geometry, the inscribed angle theorem states that an angle θ inscribed in a circle is half of the central angle 2θ that subtends the same arc on the circle. Therefore, the angle does not change as its apex is moved to different positions on… …   Wikipedia

• Small-angle approximation — is a useful simplification of the laws of trigonometry which is only approximately true for finite angles, but correct in the limit as the angle approaches zero. It involves linearization of the trigonometric functions (truncation of their Taylor …   Wikipedia

• danger angle — noun : the angle between two known points as observed from a point marking the limit of safe approach of a ship to a reef, shoal, or other obstruction which can then be passed safely by keeping the known points at an angle, as observed from the… …   Useful english dictionary

• Bistatic angle — The bistatic angle is the angle subtended between the transmitter, target and receiver in a bistatic radar. When it is exactly zero the radar is a monostatic radar, when it is close to zero the radar is pseudo monostatic, and when it is close to… …   Wikipedia

• apical angle — 1. (ARTHROPODA: Insecta) The angle of a wing at its apex. 2. (MOLLUSCA: Gastropoda) In a plane through the axis, that angle subtended between two straight lines that touch adjacent whorls on opposite sides near the apex; identical with the spire… …   Dictionary of invertebrate zoology