 The circumference of every circle is divided into 360 equal parts, called degrees (arc-degrees), and corresponding to every one of these equal parts is an angle at the centre of the circle.  The Sciences Epitomized - Page 79by J. J. Hooke - 1870 - 97 pagesFull view - About this book
 | William Taylor (teacher of the mathematics.) - Arithmetic - 1800 - 556 pages
...equal parts, each of which is called a' femi-eircle • half the diameter is called the Radius. 8. The circumference of every 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, &c. Any... | |
 | Jedidiah Morse, Sidney Edwards Morse - Geography - 1826 - 350 pages
...divide the globe into two unequal parts. The two tropics and the two polar circles are less circles. Every circle is divided into 360 equal parts, called degrees ; each degree is divided into 60 minutes ; and each minute into 60 seconds. They are marked thus 32° 14' 26" ; that... | |
 | James Ryan - Astronomy - 1827 - 408 pages
...is called an arc; and one-fourth, of the circumference of a circle is usually called a quadrant. 16. The circumference of every circle is divided into 360 equal parts, called degrees ; and of which the symbol is 12° or 7°, if 12 or 7 be their number. Each degree is also divided into... | |
 | B[enjamin] Franklin Callender - Measurement - 1836 - 226 pages
...GEOMETRY. FART FIFTH. CHAPTER I. MENSURATION OF ANGLES AND TRIANGLES. SECTION I. Definitions and ProblemS. Every circle is divided into 360 equal parts, called degrees ; each degree is divided into 60 equal parts, called minutes ; each minute is divided into 60 equal parts, called... | |
 | Daniel Adams - Arithmetic - 1849 - 142 pages
...are quadrants. 9. A Sextant is the sixth part of a circle. Thus, AFB, BFC, and CFD, are sextants. 10. The circumference of every 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. 11. Degrees,... | |
 | Daniel Adams - Measurement - 1850 - 144 pages
...quadrants. 9. A Sextant is the sixth part of a circle. Thus, AFB, BFC, and CJRD, are sextants. 10. The circumference of every 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. 11. Degrees,... | |
 | George Payn Quackenbos - Physics - 1862 - 468 pages
...circumference in a single point, without cutting it at either end when produced ; as, A li, C D. 10. The circumference of every circle is divided into 360 equal parts, called Degrees. One fourth of the circumference contains 90 degrees, and is called a Quadrant. 11. An Angle is the... | |
 | George Payn Quackenbos - Physics - 1863 - 474 pages
...18. in a single point, without cutting it at either end when pro- Fig. li duced ; as, AB, C D. 10. The circumference of every circle is divided into 360 equal parts, called Degrees. One fourth of the circumference contains 90 degrees, and is called a Quadrant. 11. An Angle is the... | |
 | James Donald (F.R.G.S.) - 1868 - 104 pages
...the artificial globe in order to determine precisely the position of places on the earth's surface. The circumference of every circle is divided into 360 equal parts called degrees (marked thus — 1°, one degree) ; each degree is divided into 60 parts called minutes (marked thus... | |
 | Edward Weller (F.R.G.S.), James Bryce - 1871 - 208 pages
...of any point is an arc of the meridian passing through that point, and terminating in the poles. 10. The circumference of every circle is divided into 360 equal parts, called degrees. 11. Every degree is divided into 60 equal parts, called minutes; and every minute into 60 equal parts,... | |
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