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" The measure of any angle is an arc of any circle contained between the two lines which form that angle, the angular point being the centre ; and it is estimated by the number of degrees contained in that arc. "
A Course of Mathematics: In Two Volumes. For the Use of Academies, as Well ... - Page 347
by Charles Hutton - 1818 - 558 pages
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The Modern Mechanic: A Scientific and Calculator, Comprising Rules and ...

William Grier - Mechanical engineering - 1861 - 316 pages
...on. Hence a semicircle contains 180 degrees, and a quadrant 90 degrees. 58. The measure of an angle, is an arc of any circle contained between the two...estimated by the number of degrees contained in that arc. 59. Lines, or chords, are said to be Equidistant from the centre of a circle, when perpendiculars drawn...
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The Practical Model Calculator, for the Engineer, Mechanic, Machinist ...

Oliver Byrne - Engineering - 1863 - 600 pages
...and so onHence a semicircle contains 180 degrees, and a quadrant 90 degrees The measure of any angle is an arc of any circle contained between the two...estimated by the number of degrees contained in that arcHence, a right angle being measured by a quadrant, or quarter of the circle, is an angle of 90 degrees...
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Rudimentary treatise on mensuration and measuring

Thomas Baker (C.E.) - 1865 - 174 pages
...&e. Hence a semicircle contains 180 degrees, and a quadrant 90 degrees. 28. The measure of an angle is an arc of any circle, contained between the two lines which form the angle, the angular point being the centre ; and is estimated by the number of degrees contained:...
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Elements of Plane and Solid Geometry: And of Plane and Spherical ...

Gerardus Beekman Docharty - Geometry - 1867 - 474 pages
...on. Hence a semicircle contains 180 degrees, and a quadrant 90 degrees. 58. The Measure of an angle is an arc of any circle contained between the two...estimated by the number of degrees contained in that arc. 59. Lines or Chords are said to be equidistant from the centre of a circle when perpendiculars drawn...
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The artillerist's manual, and compendium of infantry exercise

Frederick Augustus Griffiths - 1868 - 542 pages
...the relations, and calculations of the sides, and angles of plane triangles. The measure of an angle is an arc of any circle contained between the two...estimated by the number of degrees contained in that arc. Heuce a right angle being measured by a quadrant, or quarter of a circle, is an angle of 90 degrees....
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A Rudimentary Treatise on Land and Engineering Surveying: For Students and ...

Thomas Baker - Railroads - 1891 - 262 pages
...&c. Hence a semicircle contains 180 degrees, and a quadrant 90 degrees. 28. The measure of an angle is an arc of any circle, contained between the two lines which form the angle, the angular point being the centre ; and it is estimated by the number of degrees contained...
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The American Mathematical Monthly: The Official Journal of the ..., Volume 30

Mathematicians - 1923 - 494 pages
...line is that which lies evenly between its extreme points." "The measure of an angle is the arc of a circle contained between the two lines which form that angle, the angular point being the centre." There are 51 problems. The first 40 of these are ordinary constructions of plane geometry. The next...
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A Treatise on Practical Mensuration

Anthony Nesbit - Measurement - 1859 - 482 pages
...chords ; and it will show the number of degrees required. A " """c NOTE 1. — The measure of an angle is an arc of any circle contained between the two...form that angle, the angular point being the centre of the circle ; and it is estimated by the number of degrees that are contained in that arc. NOTE 2....
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