 | Elias Loomis - Logarithms - 1859 - 372 pages
...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,... | |
 | William Grier - Mechanical engineering - 1861 - 316 pages
...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 divided into 360 equal parts, called degrees ; and each degree into 60 minutes, each minute into 60 seconds, and so... | |
 | Josiah Lyman - Protractors - 1862 - 92 pages
...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... | |
 | Charles Davies - Arithmetic - 1863 - 346 pages
...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.... | |
 | Henry S. Merrett - 1863 - 428 pages
...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.... | |
 | Henry S. Merrett - 1863 - 476 pages
...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.... | |
 | William Frothingham Bradbury - Plane trigonometry - 1864 - 324 pages
...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... | |
 | Thomas Baker (C.E.) - 1865 - 174 pages
...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 divided into 360 equal parts, called degrees, and each degree into 60 minutes, each minute into 60 seconds, &e. Hence... | |
 | Gerardus Beekman Docharty - Geometry - 1867 - 474 pages
...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 divided into 360 equal parts, called Degrees ; and each degree into 60 Minutes, each minute into 60 Seconds, and so... | |
 | Anthony Nesbit - 1870 - 578 pages
...circumference, which is everywhere 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... | |
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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 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, etc. 
