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 Llibres Llibres 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 equal parts, called seconds. A Treatise on Plane and Spherical Trigonometry: With Their Most Useful ... - Pàgina xxi
per John Bonnycastle - 1806 - 419 pàgines
Visualització completa - Sobre aquest llibre ## The Description and Use of the Globes, and the Orrery: To which is Prefixed ...

Joseph Harris - 1732 - 190 pàgines
...Pole is placed, and the opppfite one is the Southern Hemifphere. The Aftronomers divide all Circles into 360 equal Parts called 'Degrees, each Degree...60 equal Parts called Minutes, each Minute into 60 Seconds, &c. But befides this Divifion into Degrees, the Equir noftial is commonly divided into 24...
Visualització completa - Sobre aquest llibre ## An essay on mechanical geometry, explanatory of a set of models

Benjamin Donne - 1796
...calculating the proportion which angles bear to each other, fuppofe the circumference of every circle to be divided into 360 equal parts, called Degrees...parts, called minutes ; each minute into 60 equal parts named feconds, &c. Ar. B. Sometimes the circumference of a circle is called a circle; as when it is...
Visualització completa - Sobre aquest llibre ## A Complete System of Practical Arithmetic, with Various Branches in the ...

William Taylor - 1800 - 519 pàgines
...a' femi-eircle • half the diameter is called the Radius. 8. The circumference of every circle is divided into 360 equal parts called Degrees ; each degree into 60 equal parts, called Minutes ; and each minute into 60 equal parts, called Seconds, &c. Any part of the the circumference is called...
Visualització completa - Sobre aquest llibre ## Mathematics: Compiled from the Best Authors and Intended to be the ..., Volum 1

Samuel Webber - 1801
...which stands at the 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...
Visualització completa - Sobre aquest llibre ## A Summary of Geography and History, Both Ancient and Modern ...: With an ...

Alexander Adam - 1802 - 858 pàgines
...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. greater or ¡efs according...
Visualització completa - Sobre aquest llibre ## A System of Geometry and Trigonometry: Together with a Treatise on Surveying ...

Abel Flint - 1804 - 168 pàgines
...divides the Circle into two equal parts, called Semicircles ; as AB or DE. 14. The. Circumference of every Circle is supposed to be Divided into 360 equal parts, called Degrees ; and each Degree into 60 equal parts, called Minutes ; and each Minute into 60 equal parts, called...
Visualització completa - Sobre aquest llibre ## A Treatise of Practical Surveying: Which is Demonstrated from Its First ...

Robert Gibson - 1806 - 452 pàgines
...parts called semicircles ; and is double the radius, as AB or DE. fig. 8. • 18. The circumference of every circle is supposed to be divided into 360 equal parts called degrees, and each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds,...
Visualització completa - Sobre aquest llibre ## Elements of Natural Philosophy: Arranged Under the Following Heads: Matter ...

1808 - 272 pàgines
...Ecliptic. This circle we 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 every minute into 60 equal parts, called Seconds; so that a second is the 60th part of a minute...
Visualització completa - Sobre aquest llibre ## Astronomy Explained Upon Sir Isaac Newton's Principles: And Made Easy to ...

James Ferguson, Jeremiah Horrocks - 1809 - 533 pàgines
...ecliptic. tic. This circle we 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...
Visualització completa - Sobre aquest llibre ## An Introduction to the Theory and Practice of Plane and Spherical ...

Thomas Keith - 1810 - 420 pàgines
...the measure of the angle aBC and the arc DE is the measure of the angle ABC. (H) The circumference of every circle is supposed to be divided into 360 equal...minutes, each minute into 60 equal parts called seconds. The angles are measured by the number of "egrees cut from the circle by the lines which form the B...
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