| Charles Davies - Surveying - 1830 - 300 pages
...angles that are given. 25. For the purposes of trigonometrical calculations, the circumference of the **circle is supposed to be divided into 360 equal parts,...and each minute into 60 equal parts, called seconds.** 26. As the circumference of a circle may be regarded as a proper measure of angles, having their vertices... | |
| Adrien Marie Legendre - Geometry - 1830 - 316 pages
...of trigonometrical calculations, the circumference of the circle is conceived to be divided into 36O **equal parts, called degrees ; each degree into 60...and each minute into 60 equal parts, called seconds.** The semicircumference, or the measure of two right angles, contains 1 80 degrees ; the quarter of the... | |
| Francis Joseph Grund - Geometry, Plane - 1830 - 12 pages
...arcs of circles, described with any radius between their legs. The circumference is for this purpose **divided into 360 equal parts, called degrees; each degree into 60 equal parts, called minutes;** each minute again into 60 equal parts, called seconds, &c. 16. The magnitude of an angle does not depend... | |
| Abel Flint - Surveying - 1830 - 284 pages
...divides the circle into two equal parts, called semicircles ; as AB or DE. Fig. 5. 14. 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... | |
| George Crabb - Industrial arts - 1830 - 364 pages
...circumference; the segment of a circle is a part cut off by a liue called the chord. The circumference **of every circle is supposed to be divided into 360 equal parts, called degrees,** every degree into 60 parts called minutes, and every minute into 60 parts called seconds. Solids are... | |
| Alexander Ingram - Mathematics - 1830 - 120 pages
...is called a Quadrant; and if half a right angle, it is called an Octant. NOTE 2. The circumference **of every circle is supposed to be divided into 360 equal parts, called degrees,** and a degree into 60 equal parts, called minutes, and a minute into 60 seconds, and so on. NOTE 3.... | |
| Evan Wilhelm Evans - Geometry - 1884 - 149 pages
...arc 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,... | |
| Charles Davies, Adrien Marie Legendre - Geometry - 1885 - 512 pages
...angle. For convenience, the quadrant is divided into 90 equal parts, each of which is called a degree ; **each degree into 60 equal parts, called minutes ;...and each minute into 60 equal parts, called seconds.** Degrees, minutes, and seconds, are denoted by the symbols °, ', ". Thus, the expression 7° 22' 33",... | |
| Geography - 1885 - 136 pages
...Every circle is divided into 360 equal parts called degrees ; each degree is divided И" m' ... into GO **equal parts called minutes; and each minute into 60 equal parts called seconds.** The smaller the circle, the short- 18g er are the degrees. Degrees DECREES OF THE CIRCLE. are marked... | |
| Charles Davies - Geometry - 1886 - 324 pages
...Definitions. 28 The circumference of a circle is used for the measure. ment of angles. For this purpose it is **divided into 360 equal parts called degrees, each...parts called minutes, and each minute into 60 equal** pans called second s. The degrees, minutes, and seconds are marked thus ° ' " ; and 9° 18' 16", are... | |
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