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. An Elementary Geometry and Trigonometry - Page 11by William Frothingham Bradbury - 1873 - 238 pagesFull view - About this book
| William Henry Rosser - 1877 - 158 pages
...hour. 89 = -65 42 = -7 45 = -75 ' 48 = -8 51 = -85 54 = -9 RELATION .OF CIRCULAR MEASURE. TO TIME. **The circumference of every circle is divided into 360 equal parts, called degrees** ; now the earth, whose circumference as a sphere is 360°, turns on its axis in the direction of this... | |
| Thomas Henry Huxley - Physical geography - 1878 - 428 pages
...But no one can speak of " parallels of longitude," because these 1 Each degree of latitude is divided **into 60 equal parts called minutes, and each minute into 60 equal parts called seconds.** Degrees are represented by the symbol °, minutes by ', and seconds by ". Minutes and seconds of time... | |
| David Murray - Surveying - 1878 - 284 pages
...the circumference of a circle 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.** They are expressed by the FIG. 6. characters ° ' ". The magnitude of the angle A is thus expressed... | |
| Rolla Rouse - 1879 - 402 pages
...(B 27, abdc). 20. For comparing the arc of an angle with a circumference, the latter is taken to be **divided into 360 equal parts called Degrees, each...and each minute into 60 equal parts called Seconds** ; a right angle containing 90 degrees, and a semicircle 180 degrees. Degrees are marked °, minutes... | |
| George Woolworth Colton, Joseph Hutchins Colton - Atlases - 1880 - 152 pages
...unequal parts. 4. For the purpose of measurement, every circle is conceived to be divided into 3(30 **equal parts called Degrees ; each degree, into 60 equal parts called minutes; and each minute, into** GO equal parts called Seconds. Degrees are marked °, minutes ', seconds ''. 5. The great circle which... | |
| William Findlay Shunk - Railroad engineering - 1880 - 362 pages
...one-quarter of the circle, and is the measure of a right angle. Each degree is further divided into 00 **equal parts called minutes, and each minute into 60 equal parts called seconds.** Degrees, minutes, and seconds are denoted by the symbols °, ', ": thus the expression 7° 22' 33"... | |
| George Albert Wentworth, Thomas Hill - Arithmetic - 1881 - 444 pages
...1700, 1734, 1800, 1818, 1880, 1900, 1924, 2000 are leap years? ClBCULAB AND AHGULAB MEASUBES. 302. **The circumference of every circle is divided into...equal parts, called degrees ; each degree into 60** minutes, and each minute into 60 seconds. 60 seconds (") = 1 minute ('). 60' =1 degree (°). 360°... | |
| George Albert Wentworth, Thomas Hill - Arithmetic - 1882 - 386 pages
...1700, 1734, 1800, 1818, 1880, 1900, 1924, 2000 are leap years? CIRCULAR AND ANGULAR MEASURES. 302. **The circumference of every circle is divided into...equal parts, called degrees ; each degree into 60** minutes, and each minute into 60 seconds. 60 seconds (") = 1 minute ('). W = 1 degree (°). 360° =... | |
| George Dallas Lind - Education - 1882 - 544 pages
...with it called parallels of latitude), is called longitude. 7. Every circle, whether great or small, **is divided into 360 equal parts called degrees (°), each degree into 60** parts called minutes (' ), and each minute into 60 parts called seconds ("). The distance then from... | |
| James Douglas (Teacher, Edinburgh.) - 1883 - 410 pages
...circles are all nearly equal to one another. Small circles divide the globe into two unequal portions. **Every circle is divided into 360 equal parts called degrees ; each degree** is divided into 60 minutes ; and each minute is divided into 60 seconds. Degrees are marked thus, °... | |
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