| Robert Simson - Trigonometry - 1806 - 518 pages
...called the measure of th« angle ABC. n. The circumference of a circle is supposed to be divided info **360 equal parts called degrees, and each degree into...minutes, and each minute into 60 equal parts called** seconds, i: >.. And as many degrees, minutes, seconds, &c. as are contained in any arch, of so many... | |
| Robert Gibson - Surveying - 1806 - 452 pages
...radius, as AB or DE. fig. 8. • 18. The circumference of every circle is supposed to be divided into **360 equal parts called degrees, and each degree into...minutes, and each minute into 60 equal parts called** seconds, and these into thirds, fourths, &c. these parts being greater or less as the radius is. 19.... | |
| John Hamilton Moore - Nautical astronomy - 1807 - 604 pages
...circles, whether great or fmall, are actually, or fuppofed to have, their circumference divided 11110360 **equal parts, called degrees, and each degree into...minutes, and each minute into 60 equal parts, called** féconds, and fu on into thirds, fourths, &c. All angles are msafurcd by an arch of a circle, defcribed... | |
| Abel Flint - Geometry - 1808 - 192 pages
...Semicircles; asAB or DE. Fig. 5. 14. The Circumference of every Circle is supposcfl to be divided into **360 equal parts called Degrees ;. and each Degree...Minutes ; and each Minute into 60 equal parts, called** Seconds ;. and these into Thirds, 8tc. Note. Since all Circles are divided into the same number of... | |
| Benjamin Workman - Geography - 1809 - 220 pages
...circles are coai* monly parallel to fome great circle7. Every circle is fuppofed to be divided into **360 equal parts, called Degrees ; and each degree into 60 equal parts, called Minutes** ; each minute in 60 Seconds, £c. 8. A degree of a great circle, on the earth, contains 60 geographical... | |
| James Ferguson - Astronomy - 1809 - 533 pages
...suppose to be divided into 12 equal parts, called signs ; each sign into 30 equal parts, called degrees; **each degree into 60 equal parts, called minutes; and each minute into 60** into 60 equal parts, called seconds : so that a second Plate I. is the 60th part of a minute ; a minute... | |
| John Ewing - Astronomy - 1809 - 664 pages
...circle, whether large or small, is supposed to be divided into 360 equal parts, which are called degrees, **each degree into 60 equal parts called minutes, and each minute into 60** seconds, and so on in a sixagesimal division as far as you please. If the earth be supposed to turn... | |
| John Dougall - 1810 - 680 pages
...other four watches. In modern Europe the day is divided into 2* equal parts called hours, each hour **into 60 equal parts called minutes, and each minute into 60 equal parts called** seconds. It has been found by experiment at London, in a spot elevated 113 feet above the level of... | |
| Robert Gibson - Surveying - 1811 - 592 pages
...radius, as AB or DE. fig. 8. m *!6. The circumference of every circle is supposed to be divided into **360 equal parts called degrees, and each degree into...called minutes, and each minute into 60 equal parts** caled seconds, and these into thirds, fourths, &c. these parts being greater or less as the radius... | |
| Caleb Alexander - Arithmetic - 1813 - 144 pages
...The circumference of every circle, is supposed tobe divided into 360 equal parts, called degree»; **and each degree, into 60 equal parts, called minutes; and each minute, into 60 equal parts, called** seconds, and these into thirds, fourtUs, &c. 14. Parallel lines are equidistant from each other. 15... | |
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