| Olinthus Gregory - 1863 - 482 pages
...(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. Of... | |
| Evan Wilhelm Evans - Geometry - 1862 - 116 pages
...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... | |
| Henry S. Merrett - 1863 - 476 pages
...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 pages
...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... | |
| William Frothingham Bradbury - Plane trigonometry - 1864 - 324 pages
...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 seconds ( "). 34. The RADIUS of a circle is a line... | |
| George Augustus Walton - Arithmetic - 1864 - 376 pages
...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 - Arithmetic - 1864 - 364 pages
...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 pages
...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... | |
| Asa Smith - 1868 - 84 pages
...— The boundary of a circle. The circumference of every circle ¡в supposed to be divided into and **equal parts, called degrees ; each degree into 60 equal parts, called minutes** ; and each minute into 60 equal parts, called seconds. Circumpolar Start.— Those stars which revolve... | |
| Benjamin Greenleaf - 1869 - 516 pages
...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, minutes, seconds,... | |
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