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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 Minutes, each minute into 60 Seconds, and so on. The Theory and Practice of Surveying: Containing All the Instructions ... - Σελίδα 39
των Robert Gibson - 1814 - 508 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο ## An Introduction to Mensuration and Practical Geometry

John Bonnycastle - 1829 - 252 σελίδες
...called the hypothenuse; and the other two sides are called legs. PRACTICAL GEOMETRY. 21 D / -E B *47. 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 so on. 48. The measure of any right-lined angle... ## The Practical Arithmetic: In which the Principles of Operating by Numbers ...

1829 - 180 σελίδες
...MEASURING LAND. 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... ## A concise system of mathematics

Alexander Ingram - 1830 - 120 σελίδες
...angle, the sector is called a Quadrant; and if half a right angle, it is called an Octant. NOTE 2. The circumference of every circle is supposed to be...divided into 360 equal parts, called degrees, and a degree into 60 equal parts, called minutes, and a minute into 60 seconds, and so on. NOTE 3. If two... ## A Dictionary of General Knowledge; Or, An Explanation of Words and Things ...

George Crabb - 1830 - 364 σελίδες
...centre to the circumference; the segment of a circle is a part cut off by a liue called the chord. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees, every degree into 60 parts called minutes, and every minute into 60 parts called seconds. Solids are... ## The British Celestial Atlas: Being a Complete Guide to the ..., Τόμος 1

G. Rubie - 1830 - 180 σελίδες
...that which divides the Earth or Heavens into two unequal parts. Every Circle, whether great or small, is supposed to be divided into 360 equal parts, called degrees ; and each degree is subdivided into 60 equal parts, called minutes or miles; therefore, a Semicircle contains 180 degrees,... ## The Builder's Practical Guide: Containing a Complete Explanation of the ...

John Nicholson (Civil engineer) - 1830 - 182 σελίδες
...radii and an arc, as BIK (Fig. 19). 49. The circumference of every circle, whether great or small, is supposed to be divided into 360 equal parts, called degrees ; and every degree into 60 parts, called minutes ; and every minute into 60 seconds. To measure the inclination... ## Elements of Surveying: With the Necessary Tables

Charles Davies - 1830 - 300 σελίδες
...angles that are given. 25. For the purposes of trigonometrical calculations, the circumference of the 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 New and Easy Introduction to the Mathematics: Containing. A system of ...

Ira Wanzer - 1831 - 396 σελίδες
...or 360 degrces,= {he ^. Note 1. — This table is used by Astronomers, Navigators, &c. Note 2. — 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 seconds, and each second into... ## A Family Encyclopaedia: Or, An Explanation of Words and Things Connected ...

George Crabb - 1831 - 412 σελίδες
...centre to the circumference; the segment of a circle is a part cut ofl' by a line called the chord. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees, every degree into 60 parts, called minutes, and every minute into 60 parts, called seconds. Solids... ## A System of Natural Philosophy: In which the Principles of Mechanics ...

John Lee Comstock - 1831 - 295 σελίδες
...near the star a. Each of the 12 signs of the zodiac is divided into 30 smaller partSj 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...