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. Elements of Surveying - Página 21por Charles Davies - 1830 - 300 páginasVista completa - Acerca de este libro
| Benjamin Greenleaf - 1862 - 518 páginas
...fixed upon as the unit of angular measure. For this purpose a right angle is generally divided into 90 equal parts called degrees, each degree into 60 equal parts called minutes, each minute into 60 equal parts called seconds ; then an angle is expressed by the number of degrees,... | |
| Henry S. Merrett - 1863 - 476 páginas
...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 every triangle, or two... | |
| Henry S. Merrett - 1863 - 428 páginas
...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 every triangle, or two... | |
| Olinthus Gregory - 1863 - 482 páginas
...(See the next figure.) 3. The circumference of a circle is supposed to be divided or to be divisible into. 360 equal parts, called degrees; each degree into 60 equal parts, called minutes; each of these into 60 equal parts, called seconds ; and so on to the minutest possible subdivisions.... | |
| Evan Wilhelm Evans - 1862 - 116 páginas
...are may be taken as the measure of its subtended angle. To this end the circumference is conceived to be divided into 360 equal parts, called degrees, each degree into 60 minutes, and each minute into 60 seconds. Then whatever number of degrees, etc., an arc contains, the... | |
| George Augustus Walton - 1864 - 376 páginas
...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 (") = 1 minute, 60' =1 degree,... | |
| George Augustus Walton - 1864 - 364 páginas
...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 '. 60' =1 degree,... | |
| C. Davies - 1867 - 342 páginas
...GEOMETRYDefinitions 28 The circumference of a circle is used for the measurement of angles- For this purpose it is divided into 360 equal parts called degrees, each degree into 60 equal parts called ninutes, and each minute into 60 equal parts called secondsThe degrees, minutes, and seconds are marked... | |
| Elias Loomis - 1868 - 380 páginas
...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 6O minutes, and each minute into 60 seconds. Degrees, minutes, and seconds are designated by the characters... | |
| Benjamin Greenleaf - 1869 - 516 páginas
...fixed upon as the unit of angular measure. For this purpose a right angle is generally divided into 90 equal parts called degrees, each degree into 60 equal parts called minutes, each minute into 60 equal parts called seconds ; then an angle is expressed by the number of degrees,... | |
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