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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. "
An Elementary Geometry and Trigonometry - Page 11
by William Frothingham Bradbury - 1873 - 238 pages
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The Yachtsman's Handybook for Sea Use: And Adapted for the Board of Trade ...

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...
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Physiography: An Introduction to the Study of Nature

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...
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Manual of Land Surveying, with Tables

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...
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Scientific and practical geometry for self-instruction

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...
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Colton's Common School Geography: Illustrated by Numerous Engravings and ...

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...
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The Field Engineer: A Handy Book of Practice in the Survey, Location, and ...

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"...
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A Practical Arithmetic

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...
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A Practical Arithmetic

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 =...
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The Teachers' and Students' Library: A Compendium of Knowledge Necessary to ...

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...
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A Text-book of Geography for the Use of Schools

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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