 | Henry S. Merrett - 1863 - 428 pages
...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,... | |
 | Henry S. Merrett - 1863 - 476 pages
...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,... | |
 | George Augustus Walton - Arithmetic - 1864 - 376 pages
...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,... | |
 | William Frothingham Bradbury - Plane trigonometry - 1864 - 324 pages
...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 seconds ( ").... | |
 | George Augustus Walton - Arithmetic - 1864 - 364 pages
...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... | |
 | Anthony Nesbit - 1870 - 578 pages
...equidistant from a certain point within it, called the centre. 39. 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. 40. The... | |
 | Charles Davies - Geometry - 1870 - 392 pages
...parts is given. 21. For the purpose of trigonometrical calculation, the circumference of the circle is supposed to be divided into 360 equal parts, called degrees ; each degree is supposed to be divided into 60 equal parts, called minutes ; and each minute into 80 equal parts,... | |
 | Elias Loomis - Geometry - 1871 - 302 pages
...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 by the... | |
 | John Reynell Morell - Geometry - 1871 - 156 pages
...measure Fig. 9 (a). Fig- 9 (b). 90 16. To estimate the value of any arc of the circumference, it is supposed to be divided into 360 equal parts, called degrees; each degree is divided into 60 equal parts called minutes, each minute is divided into 60 seconds, &c. Degrees,... | |
 | William Alexander Myers - Circle-squaring - 1873 - 238 pages
...triangles ; spherical trigonometry treats of spherical triangles. The circumference of a 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 by the... | |
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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. 
