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Bøker Bok 2130 av 70The circumference of every circle is supposed to be divided into 360 equal parts,...
" The circumference of every circle is supposed to be divided into 360 equal parts, called degrees; and each degree into 60 minutes, each minute into 60 seconds, and so on. "
Trigonometry, Plane and Spherical: With the Construction and Application of ... - Side 1
av Thomas Simpson - 1748 - 77 sider
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A Compendious System of Practical Surveying, and Dividing of Land: Concisely ...

1814 - 227 sider
...it is a chord to both segments of the circle, as DFE and DGE. 12. A Circle is actually, or supposed to be divided into 360 equal parts, called Degrees,...each degree into 60 equal parts, called Minutes ; and these into seconds, &c. 13. An Angle is so many degrees, as lines drawn from the centre of a circle,...
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A System of Universal Geography: For Common Schools: in which Europe is ...

Nathaniel Dwight - 1816 - 213 sider
...A. The circumference of every circle is supposed to be divided into 360 equal parts called degrees ; each degree into 60 equal parts called minutes ; and each minute into 60 seconds. Q. What is a meridian ? A. It is a great circle cutting the equator at right angle's', and...
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A Course of Mathematics ...: For the Use of Academies, as Well as ..., Volum 1

Charles Hutton - 1818
...lines BA and 3D is called the angle BAC BAD or DAB. 67. The circumference of every circle is supposed to be divided into 360 equal parts, called Degrees : and each degree into 60 Minutes, each minute into 60 Seconds, and so on. Hence a semicircle contains 180 degrees, and a quadrant...
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The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - 1821 - 544 sider
...semicircles; and is double theradius,as AB or DE. fig. 8. 16. The circumference of every circle is supposed to be divided into 360 equal parts called degrees,...60 equal parts called minutes, and each minute into 00 equal parts called seconds, and- these into thirds, fourths, &c. these parts being greater or less...
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Euclid's Elements of Geometry: The Six First Books. To which are Added ...

Rev. John Allen - 1822 - 494 sider
...have supposed the whole circumference of a circle to be divided in 360 equal parts, called degrees, each degree into 60 equal parts, called minutes and each minute into 60 equal parts, cal:ed seconds, &c. and a circle being described iron) the vertex of an angle, as a centre, an angle...
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Elements of Geography, Ancient and Modern: With an Atlas

Joseph Emerson Worcester - 1822 - 322 sider
...The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 00 equal parts, called seconds. They are marked thus, 23° 28' 16" ; i- e. 33 degrees, 28 minute!",...
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The complete servant, by Samuel and Sarah Adams

Samuel Adams (servant.), Sarah Adams - 1826
...is J3. ,\ Gross is 12 Dozen, or 144 A Pace is 3 Feet or a Yard. Mathematicians conceive every Circle to be divided into 360 equal Parts, called Degrees, and each Degree into 60 equal parts, called Seconds, and each Second subdivided into 60 smaller parts, called thirds, and so on. The Diameter of...
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Elements of geometry: Being chiefly a selection from Playfair's geometry

John Playfair - 1829 - 186 sider
...will be the proper measure of the angle BGC. Mathematicians suppose the circumference of every circle to be divided into 360 equal parts, called degrees,...equal parts, called minutes, and each minute into £0 equal parts, called seconds, &c. Hence a right angle, being measured by a quadrant contains 90...
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The Practical Arithmetic: In which the Principles of Operating by Numbers ...

1829 - 180 sider
...386* TRIGONOMETRY is the art of measuring TRIANGLES. 38T* The PERIPHERY of every cirele is supposed to be divided into 360 equal parts, called DEGREES; and each degree into 60 other equal parts, called minutes, &c. * Tfiuse who would wish to pursue this study, cannot prrhaps...
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The London Encyclopaedia: Or, Universal Dictionary of Science, Art ..., Volum 10

Thomas Curtis - 1829
...or sometimes the base and perpendicular. Fig. 10. 40. The circumference of every circle is supposed to be divided into 360 equal parts, called DEGREES, and each degree into sixty MIMUTES, each minute into sixty SECOND, and so on. Hence a semicircle contains 180 degrees, and...
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