 | Abel Flint - 1835 - 368 pagina’s
...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...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,... | |
 | Mary Somerville - 1835 - 532 pagina’s
...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... | |
 | John Lee Comstock - 1835 - 308 pagina’s
...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... | |
 | John Lee Comstock - 1835 - 308 pagina’s
...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 Playfair - 1836 - 148 pagina’s
...arc AC may be called the measure of the angle ABC, II. The circumference of a circle may be supposed to be divided into 360 equal parts called degrees...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,... | |
 | Adrien Marie Legendre - 1836 - 394 pagina’s
...trigonometrical calculation, the cir cumference of the circle is divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds. The semicircumference, or the measure of two right angles, contains 180 degrees ; the quarter... | |
 | John Lee Comstock - 1836 - 308 pagina’s
...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... | |
 | Charles Davies - 1837 - 342 pagina’s
...trigonometrical calculations, the circumference of the circle is divided into 360 equal 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 measure of angles, having their... | |
 | Mrs. L. H. Tyler - 1837 - 302 pagina’s
...from the smallest to the largest, is conceived 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. These divisions are usually expressed by signs : thus, 15° 10' 15" signifies five degrees,... | |
 | Commissioners of National Education in Ireland - 1837 - 290 pagina’s
...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 them... | |
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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, fourths, &c. 
