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 Βιβλία Βιβλία 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 ; and these into thirds, &c. The Theory and Practice of Surveying: Containing All the Instructions ... - Σελίδα 45
των Robert Gibson - 1821 - 544 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο ## Trigonometry, Plane and Spherical: With the Construction and Application of ...

Thomas Simpson - 1810 - 125 σελίδες
...some assigned number of equal parts. 2. The periphery of every circle is supposed to be di-< vided into 360 equal parts, called degrees ; and each degree...equal parts, called minutes ; and each minute into 60 equal parts, called seconds, or second minutes, &c. 3. Any part AB (fig. 1.) of the periphery of... ## An Introduction to the Theory and Practice of Plane and Spherical ...

Thomas Keith - 1810 - 420 σελίδες
...thus the arc *c is 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 parts called degrees, each degree into 60 equal parts called minutes, each minute into 60 equal parts called seconds. The... ## A pocket encyclopædia, or library of general knowledge, Τόμος 4

Edward Augustus Kendall - 1811
...measured by the arcs of a circle, contained between the two legs, having the angular point for its centre. Ev.ery circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parti, called minutes \$ each minute into' 60 equal parts, called seconds.... ## A New Treatise on the Use of the Globes, Or, A Philosophical View of the ...

Thomas Keith - 1811 - 346 σελίδες
...ascention, for the beginning of the year 1804, was 13° 14' 43" and its declination 80° "15' 44" north. \$ Every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts called minutes ; each minute into 60 equal parts called seconds,... ## A Course of Mathematics ...: Composed for the Use of the Royal Military ...

Charles Hutton - 1811
...and the other two on the two sides, that which stands at the angular point is read in the middle. 57. The circumference of every circle is supposed to be divided into 360 equnl parts, called Degrees : and each degree into 60 Minutes, each minute into 60 Seconds, and so... ## An easy introduction to geography and the use of the globes

...language of geography 59° 56'N. and 30° 24'E.; for every circle, large or small, real or imaginary, is supposed to be divided into 360 equal parts, called degrees ; and every degree into 60 parts, called minutes; and every minute into 60 parts, called seconds, marked... ## A New and Complete System of Arithmetic: Intended for the Use of Schools and ...

Caleb Alexander - 1813 - 144 σελίδες
...The circumference of every circle, is supposed tobe divided into 360 equal parts, called degree»; and each degree, into 60 equal parts, called minutes; and each minute, into 60 equal parts, called seconds, and these into thirds, fourtUs, &c. 14. Parallel lines are equidistant... ## A System of Natural Philosophy: in which the Principles of Mechanics ...

John Lee Comstock - 1813 - 340 σελίδες
...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... ## The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - 1814 - 508 σελίδες
...the circle and circumference into t wo equal parts, called semicircles; and isdoublethe radius, as AB or DE. fig. 8. 16. The circumference of every circle...60 equal parts called minutes, and each minute into 60 equal parts called seconds, and tiiese into thirds, fourths, &c. these parts being greater or less... ## A Compendious System of Practical Surveying, and Dividing of Land: Concisely ...

1814 - 227 σελίδες
...DE. and 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...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,...