angle

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angle,

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.
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.

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.

angle

[′aŋ·gəl]
(mathematics)
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.

angle

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.

angle

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
References in periodicals archive ?
Sunstar Americas announces Butler[R] Prophyciency[TM] disposable prophy angles that clean without prophy paste.
Mydent announces new DEFEND+PLUS Prophy Angles. The new prophy angles with contra design are intended to reduce hand fatigue and micro traumas and allow for greater access.
Denticator announces The Emerald[TM], the newest addition to its line of disposable prophy angles. The ergonomic 17-degree bend in the neck and the gearing design of the angle are intended to improve clinician comfort, while the prominent ridges found at the base are meant to enhance the operator's grip.
Dental professionals can request a free Professional Pack of 2pro Disposable Prophy Angles (enough to treat 20 patients) from Premier by visiting www.premusa.com/try2protoday or by faxing a copy of your office letterhead indicating your name and referencing "Try 2pro Today" to 888-614-6646.
To further help patients through the exam process, Van Sant has found that she likes to use prophy angles that have the polish incorporated into them.
Also available from Crosstex are Patient's Choice[R] products including Twist[R] and Sparkle[R] Prophy Angles and Sparkle EZ Contra Angle; Sparkle V[TM] 5% Sodium Fluoride Varnish with Xylitol; Sparkle[R] and Sparkle FREE[R] Prophy Paste with Xylitol; Zap[R] Fluoride Gel, Zap[R] Neutral pH Fluoride Gel and Zap[R] Dual Arch Fluoride Trays; and GumNumb[R] Topical Anesthetic Gel with 20% Benzocaine.
DentalEZ[R] Group recently partnered with Premier[R] Dental Products Company to offer a special deal: effective through December 31, 2010, dental professionals who purchase a StarDental[R] Prophy Star 3 Hygiene Handpiece will receive 144 Premier 2pro Total Access Disposable Prophy Angles free.

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