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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 ## 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,... ## A practical treatise on ... land and engineering surveying

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... ## 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 ( " ) . .... ## 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 ...

...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... ## A Written Arithmetic, for Common and High Schools: To which is Adapted a ...

George Augustus Walton - 1864 - 348 σελίδες
...circumference, through the centre, to an opposite foiat, is called a Diameter. 188. The circumference of any circle is supposed to be divided into 360 equal parts, called Degrees, each degree into 60 Minutes, and each minute into 60 Seconds. TABLE. marked '. u о 60 seconds (")... ## A Written Arithmetic, for Common and High Schools: To which is Adapted a ...

George Augustus Walton - 1864 - 348 σελίδες
...circumference, through the centre, to an opposite point, is called a Diameter. 188. The circumference of any circle is supposed to be divided into 360 equal parts, called Degrees, each degree into 60 Minutes, and each minute into 60 Seconds. TABLE. 60 seconds (") = 1 minute, marked... ## Rudimentary treatise on mensuration and measuring

Thomas Baker (C.E.) - 1865
...CE be drawn, the space, bounded by these radii and the arc FE, will be the sector of a circle. 27. The circumference of every circle is supposed to be...equal parts, called degrees, and each degree into 60 minutes, each minute into 60 seconds, &e. Hence a semicircle contains 180 degrees, and a quadrant 90... ## Elements of Plane and Solid Geometry: And of Plane and Spherical ...

Gerardus Beekman Docharty - 1867 - 283 σελίδες
...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...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...