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in mathematics, figure formed by the intersection of two straight lines; the lines are called the sides of the angle and their point of intersection the vertex of the angle. Angles are commonly measured in degrees (°) or in radians. If one side and the vertex of an angle are fixed and the other side is rotated about the vertex, it sweeps out a complete circle of 360° or 2π radians with each complete rotation. Half a rotation from 0° or 0 radians results in a straight angle, equal to 180° or π radians; the sides of a straight angle form a straight line. A quarter rotation (half of a straight angle) results in a right angle, equal to 90° or π/2 radians; the sides of a right angle are perpendicular to one another. An angle less than a right angle is acute, and an angle greater than a right angle is obtuse. Two angles that add up to a right angle are complementary. Two angles that add up to a straight angle are supplementary. One of the geometric problems of antiquitygeometric problems of antiquity,
three famous problems involving elementary geometric constructions with straight edge and compass, conjectured by the ancient Greeks to be impossible but not proved to be so until modern times.
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 is the trisection of an angle. Angles can also be formed by higher–dimensional figures, as by a line and a plane, or by two intersecting planes.
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Angle (Angular)

(religion, spiritualism, and occult)

The term “angle” can be used in two different ways in astrology. In its primary, traditional meaning, angle refers to one of the four “corners” (figuratively speaking) of a chart—namely, the cusps of the first, fourth, seventh, and tenth houses. Planets making a conjunction with the angles—which are sometimes called angular planets, particularly when they are in an angular house—are said to exercise an especially strong influence over the entire horoscope. In practice, astrologers pay the most attention to angular planets in the first and tenth houses. Angle is also used as an alternative term for aspect, as when one talks about the angular relationship between two planets.

The Astrology Book, Second Edition © 2003 Visible Ink Press®. All rights reserved.


The geometric figure, arithmetic quantity, or algebraic signed quantity determined by two rays emanating from a common point or by two planes emanating from a common line.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


1. The figure made by two lines that meet.
2. The difference in direction of such intersecting lines, or the space within them.
3. A projecting or sharp corner.
4. A secluded area resembling a corner; a nook.
5. An L-shaped metal member; an angle iron.
7. A fitting on a gutter for rainwater which changes the gutter’s direction.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.


1. the space between two straight lines that diverge from a common point or between two planes that extend from a common line
2. the shape formed by two such lines or planes
3. the extent to which one such line or plane diverges from another, measured in degrees or radians
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
66, hy) long, with broad-based rounded-truncate dorsobasal lobe, posterior bridge dorsally and ventrally produced (rounded to slightly angulate in profile); hypandrial arms constricted in apical 2/ (viewed laterally), with 2 setulae proximal to postgonite, the more lateral ventrally directed, the medial ventromedially directed (obscured by epandrium on Fig.
balachowskyi, in which the right lateral border forms a distinct, angulate fold, and in having the setae on sternite 6 much longer on the apical margin.
Head with epistoma feebly gibbous at centre, irregularly punctured, punctation distally denser and rather coarse, on disc fine and very sparse; clypeus anteriorly subtruncate, widely rounded at sides, rather thickly bordered, the edge feebly upturned and distinctly bristled laterally; genae angulate, posteriorly 09[degrees]34'N-83[degrees]41'W, VIII.1976, leg.
Head with epistoma feebly gibbous at centre, irregularly punctured, punctation denser and coarser distally, very superficial and sparse on disc; clypeus subtruncate anteriorly, widely rounded at sides, distinctly bordered, the edge rather elongately bristled laterally; genae angulate, elongately sparsely ciliate, protruding more than eyes; frontal suture finely impressed laterally only; front very finely and sparsely punctured.
carinatus Gross --Forelegs concolorous with mid and hind legs; frontal plate posteriorly angulate (Fig.
13b); right paramere angulate, with apex scalloped (Fig.
3' At least one lateral margin of labrum angulate ...
Both lateral margins of labrum slightly angulate ...
8) and with deep, round punctures irregularly separated by 1-5 diameters; lateral borders strongly angulate, lateral marginal bead crenulate, with slender, long setae; basal bead indicated by punctures on middle third; anterior angles acute, prominent; posterior angles obtuse, rounded.
introduces 2 products in its EXPEDIUM[R] Spine System: the EXPEDIUM Favored Angle Screw, a thoracolumbar favored-angle pedicle screw that angulates laterally or medially for easier rod capturing, and the EXPEDIUM Cobalt-Chromium (CoCr) Alloy Rod, designed to maintain deformity correction without compromising imaging compatibility.