| Mathematics - 1835 - 684 pages
...the circumference of the circle Л PB (fig. Art. 3) completed, and divided into 360 equal portions **called degrees* ; each degree into 60 equal parts called minutes; each minute** into 60 equal parts called seconds ; &c. The magnitude of the an^le А С Р is expressed by the number... | |
| Thomas Spofford - Almanacs, American - 1835 - 84 pages
...from a point within the circle, called the centre. The circumference of every circle is supposed to be **'divided into 360 equal parts called degrees ; each degree into 60 equal** parls called minutes, and each minute into 60 equal parts called seconds. Colurea ; those two meridians... | |
| Adrien Marie Legendre - Geometry - 1836 - 359 pages
...CIRCUMFERENCE. I. For the purposes of trigonometrical calculation, the cir cumference of the circle is **divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes** ; and each minute into 60 equal parts, called seconds. The semicircumference, or the measure of two... | |
| Mrs. L. H. Tyler - Astronomy - 1837 - 302 pages
...plane of a circle. (21.) DBF. 4. Every circle, from the smallest to the largest, is conceived 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. These divisions are usually expressed by signs... | |
| Charles Davies - Navigation - 1837 - 336 pages
...accuracy. 41. For the purposes of trigonometrical calculations, the circumference of the circle is **divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes** ; and each minute into 60 equal parts, called seconds. As the circumference of a circle may be regarded... | |
| Thomas Kerigan - Nautical astronomy - 1838
...hemisphere, and the other, the southern hemisphere. — The equator, like all other great circles, is **divided into 360 equal parts, called degrees ; each...into 60 equal parts, called minutes ; each minute** into , 60 equal parts, called seconds, and so on. The Meridian of any place on the earth is a great... | |
| Thomas Holliday - Surveying - 1838 - 404 pages
...their opening or inclination to each other. 2. 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 again into 60 equal parts, called seconds. The angles are measured by the number of... | |
| Thomas Keith - 1839 - 498 pages
...the arc DE is the measure of the angle ABC. (56) 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. The angles are measured by the number of degrees cut from the circle... | |
| Charles Davies - Surveying - 1839 - 380 pages
...accuracy. 41. For the purposes of trigonometrical calculations, the circumference of the circle is **divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes** ; and each minute into 60 equal parts, called seconds. PLANE TRIGONOMETRY. V As the circumference of... | |
| Charles Davies - Surveying - 1839 - 376 pages
...accuracy. 41. For the purposes of trigonometrical calculations, the circumference of the circle is **divided into 360 equal parts, called degrees; each degree into 60 equal parts, called minutes;** and each minute into 60 equal parts, called seconds. PLANE TRIGONOMETRY \ As the circumference of a... | |
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