 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.  Elements of Geometry and Trigonometry - Page 16by Adrien Marie Legendre - 1871 - 187 pagesFull view - About this book
 | Augustus De Morgan - Algebra - 1840 - 182 pages
...3-1415927. * The right angle is divided into 90 equal parts called degrees, each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. Thus, 2° 15' 40" means 2 degrees, 15 minutes, and 40 seconds. To find the area of a sector, very nearly,... | |
 | Charles Davies - Geometrical drawing - 1840 - 264 pages
...this purpose it is divided into 360 equal parts, called degrees, each degree is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. The degrees, minutes, and seconds, are marked thus, °, ', " ; and 9° 18' 10", are read, 9 degrees,... | |
 | Benjamin Franklin Edmands - Geography - 1841 - 88 pages
...is the 360th part of a circle, and contains CPJ English miles ; each degree is divided into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds. They are marked (°) degrees, (') minutes, (") seconds. The LONGITUDE of a place, is its distance from... | |
 | Charles Guilford Burnham - Arithmetic - 1841 - 324 pages
...circle is supposed to be divided into 360 equal parts, called degrees; and each degree into 0O equal parts, called minutes; and each minute into 60 equal parts, called seconds; and these into thirds, &c. Hence a semi-circle containi 180 degrees, and a quadrant 90 degrees. 15.... | |
 | Charles Davies - Navigation - 1841 - 414 pages
...circumference of the circle is divided into 360 eqnal 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 as a proper meesure of angles, having their vertices... | |
 | Roswell Chamberlain Smith - Arithmetic - 1841 - 324 pages
...through the centre of the earth. 15 CORRESPOH D, [L. eorrespondeo.} To answer to ; communicate with. parts, called minutes, and each minute into 60 equal parts, called seconds. 76. The circumference1 of the earth is a great circle of 360 de prees. On this circle every minute... | |
 | Joseph Emerson Worcester - Classical geography - 1844 - 362 pages
...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. " They are marked thus, 23° 28' 16"; ie 83 degrees, 23 minutes, and 16 seconds. The Equator is an... | |
 | Scottish school-book assoc - 1845 - 444 pages
...divided into 300 equal parts, called degrees, and each degree is supposed to be divided into 60 equal parts, called minutes, and each minute into 60 equal...called seconds. Degrees, minutes, and seconds, are distinguished by the following marks : — 7° 3' 24", which is read 7 degrees, 3 minutes, and 24 seconds.... | |
 | Nathan Scholfield - Conic sections - 1845 - 542 pages
...be divided into 360 equal parts, called degrees, and each of those degrees is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds ; and so on, to thirds, fourths, &c. These divisions are designated by the following characters, 0... | |
 | Nathan Scholfield - Conic sections - 1845 - 244 pages
...be divided into 360 equal parts, called degrees, and each of those degrees is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds ; and so on, to thirds, fourths, &c. These divisions are designated by the following characters, °... | |
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