what is the definition angle
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The Definition of an Angle Definition: Angles are formed by two rays that begin at the same point or share the same endpoint. The angle measures the amount of turn between the two arms and is usually measured in degrees or radians. Where the two rays intersect (come together to meet) is called the vertex. The two rays are sometimes referred to as the arms.
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elbow elbow. Noun. (plural elbows). 1  The joint between the upper arm and the forearm. 2  Any turn or bend like that of the elbow, in a wall, building, coastline, etc.; an angular or jointed part of any structure, such as the raised arm of a chair or sofa, or a short pipe fitting, turning at an angle or bent.
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Angles Angles. An angle measures the amount of turn. Names of Angles As the Angle Increases, the Name Changes:
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angle n (astronomy) the angle between the plane of the orbit and the plane of the ecliptic stated in degrees. the space between two lines or planes that intersect; the inclination of one line to another; measured in degrees or radians.
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Geometry Definitions Angles that have the same measure (i.e. the same magnitude) are said to be equal or congruent. An angle is defined by its measure and is not dependent upon the lengths of the sides of the angle (e.g. all right angles are equal in measure).
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- Freebase (0.00 / 0 votes) Rate this definition: Angle. In geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. Angles are usually presumed to be in a Euclidean plane or in the Euclidean space, but are also defined in non-Euclidean geometries.
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angle Full Definition of ANGLE. 1. 2. a: the figure formed by two lines extending from the same point; also: dihedral angle b: a measure of an angle or of the amount of turning necessary to bring one line or plane into coincidence with or parallel to another.
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Angle An angle can be identified in two ways. The size of an angle is measured in degrees (see Angle Measures). When we say 'the angle ABC' we mean the actual angle object.
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Introduction to Angles The symbol for degrees is °. Angles can measure from 0° up to 360°. Angles with no measure are called zero angles, while angles of 360° are full rotations. For our study of geometry, we will primarily focus on three important classifications of angles: acute, obtuse, and right.
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Arc Definition of Arc. An Arc is a curved line that is a part of a circle. An Arc is a part of the circumference of a circle.
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Introduction to Angles Right Angle. A right angle is an angle whose measure is exactly 90°. An easy way to determine whether an angle is a right angle is by considering whether a small square could fit perfectly in the corner of the intersection of the two lines that form the angle.
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- Definition: An angle whose measure is less than 90° Try this Adjust the angle below by dragging an orange dot and see how the angle ∠ ABC behaves. Note that it is acute for all angles from zero to (but not including) 90° Acute angles are the smallest, being between (but not including) zero and 90° Note also that acute triangles are those where all the interior angles are acute.
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Degree (angle measure) - Definition and Meaning Degree (angle measure) A unit of measure used to measure the magnitude of an angle. 1 degree equals 1/360 of a complete revolution in magnitude. Try related math problems:
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Types of Angles: Right, Straight, Acute & Obtuse An acute angle is an angle that is less than 90°. It is smaller than a right angle, and it doesn't matter whether this is 1° or 89°, it is still an acute angle. But angles can of course be bigger than 90°. An angle that is larger than 90°, but smaller than 180° is called an obtuse angle.
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Angles Parts of an Angle. The corner point of an angle is called the vertex. And the two straight sides are called arms. The angle is the amount of turn between each arm. How to Label Angles. There are two main ways to label angles: 1. give the angle a name, usually a lower-case letter like a or b, or sometimes a Greek letter like α (alpha) or θ (theta) 2. or by the three letters on the shape that define the angle, with the middle letter being where the angle actually is (its vertex).
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- 1. countable noun. 1  A right angle is an angle of ninety degrees. 2  the angle between two radii of a circle that cut off on the circumference an arc equal in length to one quarter of the circumference; an angle of 90° or π/2 radians. 3  an angle of 90 degrees; angle made by the meeting of two straight lines perpendicular to each other.
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What is a Right Angle? - Definition & Formula Definition of a Right Angle. A right angle is an angle that measures exactly 90 degrees. It is exactly a quarter of a circle. When you cut a pie into four equal pieces, the tip of each slice will form a right angle. Notice how the tips of each slice make a corner that is a right angle.
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Math Terms. In planar geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle.
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Lines, Rays and Segments Definition: When the rays are the two halves of a line (they point in opposite directions), the angle is called a straight angle: A straight angle measures 180o. Definition: When the sides of an angle are perpendicular, the angle is called a right angle: A right angle measures 90o.
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Positions and Sizes of Cosmic Objects An angle is the opening between two lines that meet at a point and angular measure describes the size of an angle in degrees, designated by the symbol °. A full circle is divided into 360° and a right angle measures 90°. One degree can be divided into 60 arcminutes (abbreviated 60 arcmin or 60').
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Community College of the Air Force We partner with over 108 affiliated Air Force schools, 82 Education Service Offices located worldwide, and more than 1,500 civilian academic institutions to serve approximately 300,000 active, guard, and reserve enlisted personnel, making CCAF the world's largest community college system.
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angle 1. (Mathematics) the space between two straight lines that diverge from a common point or between two planes that extend from a common line. 2. (Mathematics) the shape formed by two such lines or planes. 3. (Mathematics) the extent to which one such line or plane diverges from another, measured in degrees or radians. 4. an angular projection or recess; corner. 5. standpoint; point of view: look at the question from another angle; the angle of a newspaper article.
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Geometry Definitions Acute Angle - An angle who's measure is less than 90 degrees. Acute Triangle - A triangle with three acute angles. Adjacent Angles - Two angles that share a common vertex, side, or ray. Altitude of a Triangle- A perpendicular segment from a vertex that extends to the opposite side.
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- Definition of Central Angle. The angle in a circle whose vertex is the center of the circle is called the Central Angle. In the figure shown, O is the center of the circle and angle POQ is the central angle.
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Angle An angle can be identified in two ways. The angle symbol, followed by three points that define the angle, with the middle letter being the vertex, and the other two on the legs. So in the figure above the angle would be ∠ABC or ∠CBA. So long as the vertex is the middle letter, the order is not important.
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What is a Right Angle? - Definition & Formula Definition. A right angle is an angle that measures exactly 90 degrees. It is exactly a quarter of a circle. When you cut a pie into four equal pieces, the tip of each slice will form a right angle. Look at the circle or 'pie' above and notice how the tips of each slice make a corner that is a right angle.ight Triangles. You will see right angles in many places. You will see them in squares and rectangles where each corner is a right angle. One of the most useful places you will see them is in triangles. When a triangle has a right angle, it becomes a special type of triangle called a right triangle.