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" 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
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ELEMENTS OF PLANE AND SPHERICAL TRIGONOMETRY

ELIAS LOOMIS, LL.D. - 1859
...Trigonometry treats of plane triangles; Spherical Trigonometry treats of spherical triangles. (19.) The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 minutes, and each minute into 60 seconds. Degrees, minutes, and seconds are designated...

The Progressive Practical Arithmetic: Containing the Theory of Numbers, in ...

Horatio Nelson Robinson - 1859 - 336 σελίδες
...suits containing 9 yd. 2 qr. each ; how many suits did he make ? Ans. 17. LONGITUDE AND TIME. c 324. Every circle is supposed to be divided into 360 equal parts, called degrees* Since the sun appears to pass from east to west round the earth, or through 360°, once in every 24...

A Treatise on Practical Mensuration

Anthony Nesbit - 1859 - 450 σελίδες
...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 GO equal parts, called seconds. 48. The arc of a quadrant contains 90 degrees, which is the measure...

The Modern Mechanic: A Scientific and Calculator, Comprising Rules and ...

William Grier - 1861 - 305 σελίδες
...two on the two sides, that which stands at the angular point is read in the middle. Thus, DAE. 57. The circumference of every circle is supposed to be...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...

A Manual of the Protracting Trigonometer: With Its Application to ...

Josiah Lyman - 1862 - 77 σελίδες
...circumference ; as BC, or CD, Fig. 1. 7. A Quadrant is the fourth part of a circle; as AFB, Fig. 1. 8. 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,...

Practical Arithmetic: Embracing the Science and Applications of Numbers

Charles Davies - 1863 - 336 σελίδες
...used in estimating latitude and longitude, and also in measuring the motions of the heavenly bodies. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divided into 60 minutes, and each minute into 60 seconds. Table 60 Seconds ( " ) . ....

A practical treatise on ... land and engineering surveying, Τόμος 34

Henry S. Merrett - 1863
...arc itself, which is described on the angular point, but by certain lines described about that arc. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees; each degree into 60 minutes ; each minute into 60 seconds ; and so on. The sine of three angles of...

A Practical Treatise on the Science of Land and Engineering Surveying ...

Henry S. Merrett - 1863 - 317 σελίδες
...arc itself, which is described on the angular point, but by certain lines described about that arc. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees; each degree into 60 minutes ; each minute into 60 seconds ; and so on. The sine of three angles of...

The Practical Model Calculator, for the Engineer, Mechanic, Machinist ...

Oliver Byrne - 1863 - 588 σελίδες
...TRIGONOMETRY treats of the relations and calculations of the sides and angles of plane trianglesThe circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; also each degree into 60 minutes, each minute into 60 seconds, and so onHence a semicircle contains...

Elements of Plane Trigonometry: And Their Application to the Measurement of ...

William Frothingham Bradbury - 1864
...circumference, every point of which is equally distant from a point within, called the centre ; as ABD E. 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...




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