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
| Glenn Moody Hobbs - 1912 - 100 pages
...protractor, Fig. 14, showing degrees and fractions of degrees, is necessary. Each degree is divided **into 60 equal parts called minutes, ', and each minute into 60 equal parts called seconds,** ". Thus to represent an angle of 23 degrees, 47 minutes, and 9 seconds, write 23° 47' 9". The relations... | |
| George Albert Wentworth, David Eugene Smith - Arithmetic - 1912 - 374 pages
...order to be done 10 min. before the close of the class period ? DENOMINATE NUMBERS 134. Measuring Arcs. **The circumference of every circle is divided into 360 equal parts called degrees.** Corresponding to every arc, like AB in the figure, is an angle at the center, A OB. Therefore to every... | |
| George E. Mercer, Mabel Bonsall - Arithmetic - 1914 - 324 pages
...equally distant from the center. Any part of a circumference is an arc. A to B and B to C are arcs. **The circumference of every circle is divided into 360 equal parts called degrees, each degree into** i50 equal parts called minutes, and each minute into 60 equal parts called seconds. 5J^ of a circumference... | |
| Claude Irwin Palmer, Charles Wilbur Leigh - Plane trigonometry - 1914 - 308 pages
...turning. The right angle is divided into 90 equal parts called degrees (°), each degree is divided **into 60 equal parts called minutes ('), and each minute into 60 equal parts called seconds** ("). Starting from any position as initial side, it is evident that, for each position of the terminal... | |
| Harmon Bay Niver - Geography - 1915 - 418 pages
...matter what size it may be, is divided into 360 equal parts called degrees. Each degree is divided **into 60 equal parts called minutes, and each minute into 60 equal parts called seconds.** The Equator and the meridian circles are called great circles, because they divide the earth into hemispheres.... | |
| Mechanical engineering - 1916 - 1826 pages
...MEASURE. (360 degrees = 1 revolution.) 1 degree = 1° = Ho of a right angle. The degree is usually divided **into 60 equal parts called minutes ('), and each minute into 60 equal parts called seconds** ("); while the second is subdivided decimally. But for many purposes it is more convenient to divide... | |
| Ervin Kenison - Mechanical drawing - 1916 - 44 pages
...ie, it is /A = i of a circumference. In order to obtain accurate measurements each degree is divided **into 60 equal parts called minutes and each minute into 60 equal parts called seconds.** /esi I8O Fig. 67. Angular Measurement SOLIDS A solid has three dimensions — length, breadth, and... | |
| Claude Irwin Palmer, Charles Wilbur Leigh - Logarithms - 1916 - 348 pages
...turning. The right angle is divided into 90 equal parts called degrees (°), each degree is divided **into 60 equal parts called minutes ('), and each minute into 60 equal parts called seconds** (")• Starting from any position as initial side, it is evident that, for each position of the terminal... | |
| Lionel Simeon Marks - Mechanical engineering - 1916 - 1918 pages
...MEAAUKE. (360 degrees - 1 revolution.) 1 degree Ie ' » of a right angle. The degree is usually divide«! **into 60 equal parts called minutes ('), and each minute into 60 equal parts called seconds** ("); while the second is subdivided decimally. Rut for many purposes it is more convenient to divide... | |
| Nathaniel Bowditch - Nautical astronomy - 1916 - 912 pages
...to have their circumferences divided into 360 ecjual parts, called degrees; each degree is divided **into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds;** an arc is measured by the number of degrees, minutée, and seconds that it contains. . v , apply i... | |
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