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Bøker Bok 1120 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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Elements of Plane and Spherical Trigonometry: Written Originally in Russian ...

Vasiliĭ Nikitich Nikitin, Prokhov Ignatévich Suvorov - 1786 - 101 sider
...belong as well to the arches, as to the angles at the center, which ftand on them. 2 . The circumference of every circle is fuppofed to be divided into 360 equal parts, which are called degrees (poij <xî, gradus) -, and every degree into 60 equal parts, which are called...
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A Treatise of Algebra: Wherein the Principles are Demonstrated and Applied ...

Thomas Simpson - 1800 - 400 sider
...but alfo that certain right lines, in and about the circle, be fuppofed divided into fome affigned number of equal parts. 2. The periphery of every circle...equal parts, called degrees ; and each degree into 60 cgual parts, called minutes, and each minute into 60 equal parts, called feconds, or fccond minutes,...
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A Treatise on Plane and Spherical Trigonometry: With an Introduction ...

Samuel Vince - 1800 - 179 sider
...triangle, the other three may be found, in all cafes where the data are fufficient. $-j. The circumference of every circle is fuppofed to be divided into 360 equal parts, called Degrees ; every degree into 60 equal parts called Minutes ; every minute into 60 equal parts called Seconds...
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Mathematics: Compiled from the Best Authors and Intended to be the ..., Volum 1

Samuel Webber - 1801
...angular point, is rend in the middle. C 56. The 39° 5 6. 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 do seconds, and so on. Hence a semicircle contains 1 80 degrees, and a quadrant...
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A Summary of Geography and History, Both Ancient and Modern ...: With an ...

Alexander Adam - 1802 - 858 sider
...diameter. The di;trne'erj and radii of the fame circle are always equal to one another. The circumference of every circle is fuppofed to be divided into 360 equal parts, called degrees ; each degree into 60 mi* ñutes \ each minute into 60 feccnds ; and thefe into thirds, fourths, &c....
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Elements of Geography: Designed for Young Students in that Science. In Seven ...

Benjamin Workman - 1809 - 191 sider
...the middle, but divides it unequally. LeflVr circles are coai* monly parallel to fome great circle7. Every circle is fuppofed to be divided into 360 equal...and each degree into 60 equal parts, called Minutes ; each minute in 60 Seconds, £c. 8. A degree of a great circle, on the earth, contains 60 geographical...
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A Plain Elementary and Practical System of Natural Experimental Philosophy ...

John Ewing - 1809 - 538 sider
...circle, whether large or small, is supposed to be divided into 360 equal parts, which are called degrees, each degree into 60 equal parts called minutes, and each minute into 60 seconds, and so on in a sixagesimal division as far as you please. If the earth be supposed to turn...
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Astronomy Explained Upon Sir Isaac Newton's Principles: And Made Easy to ...

James Ferguson, Jeremiah Horrocks - 1809 - 533 sider
...suppose to be divided into 12 equal parts, called signs ; each sign into 30 equal parts, called degrees; each degree into 60 equal parts, called minutes; and each minute into 60 into 60 equal parts, called seconds : so that a second Plate I. is the 60th part of a minute ; a minute...
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The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - 1811 - 508 sider
...and is double the radius, as AB or DE. fig. 8. m *!6. The circumference of every circle is supposed to be divided into 360 equal parts called degrees,...called minutes, and each minute into 60 equal parts caled seconds, and these into thirds, fourths, &c. these parts being greater or less as the radius...
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A System of Natural Philosophy: In which the Principles of Mechanics ...

John Lee Comstock - 1813 - 340 sider
...star a. 762. Each of the 12 signs of the zodiac is divided into 30 smaller parts, called degrees ; each degree into 60 equal parts, called minutes, and each minute into 60 parts, called seconds. The division of the zodiac into signs, is of very ancient date, each sign having...
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