 | Euclid - 1835 - 540 pages
...II. The circumference of a 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, &c. A degree is marked thus, ° ; a minute thus, ' ; a second thus,"; and so on: for... | |
 | Thomas Spofford - Almanacs, American - 1835 - 84 pages
...sun is in one of the foci. Each orbit is divided into 12 equal parts called signs j each sign into 30 equal parts called degrees; each degree into 60 equal parts called minutes; each minute into 60 seconds ; each second into 60 thirds, &c. Beginning at that part of the ecliptic... | |
 | Adrien Marie Legendre - Geometry - 1836 - 394 pages
...I. For the purposes of trigonometrical calculation, the cir cumference of the circle is divided into 360 equal parts, called degrees ; each degree into...called minutes ; and each minute into 60 equal parts, called seconds. The semicircumference, or the measure of two right angles, contains 180 degrees ; the... | |
 | John Lee Comstock - Physics - 1836 - 308 pages
...already seen, the sun appears to move Each of the 12 signs of the zodiac is divided (nto 30 smaller parts, called degrees; each degree into 60 equal parts, called minutes, and each minute into BO parts, called seconds.) The division of the zodiac into signs, is of very ancient date, each sign... | |
 | John Playfair - Geometry - 1836 - 148 pages
...The circumference of a circle may be 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, &c. And as many degrees, minutes, seconds, &c. as are contained in any arc, of so many... | |
 | Mrs. L. H. Tyler - Astronomy - 1837 - 302 pages
...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...called minutes; and each minute into 60 equal parts, called seconds. These divisions are usually expressed by signs : thus, 15° 10' 15" signifies five... | |
 | Charles Davies - Navigation - 1837 - 342 pages
...41. For the purposes of trigonometrical calculations, the circumference of the circle is divided into 360 equal parts, called degrees ; each degree into...called minutes ; and each minute into 60 equal parts, called seconds. As the circumference of a circle may be regarded as a proper measure of angles, having... | |
 | Commissioners of National Education in Ireland - Measurement - 1837 - 290 pages
...circumference pf every circle is generally divided into 360 equal parts, called degrees ; and every degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds. The angles are measured by the number of degrees contained in the arcs which subtend... | |
 | James Thomson (LL.D.) - Arithmetic - 1837 - 296 pages
...every circle is supposed to be divided into 360 equal parts, called degrees;* each degree is subdivided into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds. MISCELLANEOUS TABLE. 12 articles =1 dozen „ ,-. ( 12 dozen = 1 gross 6 6core or 120"... | |
 | Thomas Holliday - Surveying - 1838 - 404 pages
...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 degrees, &c., cut... | |
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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 60 equal parts, called seconds. 
