 | William Smyth - Plane trigonometry - 1834 - 104 pages
...radii. ' 10. The entire circumference of every circle, whether great or small, is divided into 360 equal parts called degrees, each degree into 60 equal parts called minutes, each minute into 60 equal parts called seconds, each second into 60 equal parts called thirds, &c.... | |
 | Francis Joseph Grund - Geometry, Plane - 1834 - 212 pages
...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... | |
 | 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 example, 57° 17'... | |
 | Mary Somerville - Astronomy - 1835 - 532 pages
...axis of the ellipse. NOTE 49. p. 12. Ninety degrees. A circle is divided into 3fiO equal parts, or degrees; each degree into 60 equal parts, called minutes...and each minute into 60 equal parts, called seconds. It is usual to write these quantities thus, 15° 16' 10'', which means fifteen degrees, sixteen minutes,... | |
 | Abel Flint - Geometry - 1835 - 368 pages
...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, &c. NOTE. Since all circles are divided into the same number of degrees, a... | |
 | John Lee Comstock - Physics - 1835 - 308 pages
...another constellation, and neai the star a. Each of the 12 signs of the zodiac is divided into 30 smaller parts, called degrees; each degree into 60 equal parts, called minutes, and each minute into GO parts, called seconds. The division of the zodiac into signs, is of very ancient date, each sign... | |
 | John Lee Comstock - 1835 - 308 pages
...another constellation, and neai the star a. Each of the 12 signs of the zodiac is divided into 30 smaller parts, called degrees; each degree into 60 equal parts, called minutes, and each minute into (50 parts, called seconds. The division of the zodiac into signs, is of very ancient date, each sign... | |
 | 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
...For the purposes of trigonometrical calculation, the cir cumference of the circle is divided into 360 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 180 degrees ; the quarter of the... | |
 | 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 degrees, minutes,... | |
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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. 
