| William A. Radford, Alfred Sidney Johnson - 1909
...divided by mathematicians into 360 equal parts, called degrees ; each degree being again subdivided **into 60 equal parts, called minutes, and each minute into 60 equal parts called seconds.** Hence, it follows that the arc of a quarter circle or quadrant includes 90 degrees; that is, one-fourth... | |
| Glenn Moody Hobbs - 1912
...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... | |
| John William Hopkins, Patrick Healy Underwood - 1912
...units. The whole circumference 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.** As one degree is ^^ of any circumference, a degree on one circle is not of the same size as a degree... | |
| CLAUDE IRWIN PALMER - 1914
...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... | |
| George E. Mercer, Mabel Bonsall - 1914
...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 is called 1 degree of arc. J of a circumference, or 90 degrees, is called a... | |
| 1915 - 360 sider
...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.... | |
| Claude Irwin Palmer, Charles Wilbur Leigh - 1916 - 188 sider
...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... | |
| Edward Vermilye Huntington, Louis Albert Fischer - 1916 - 186 sider
...(360 degrees = 1 revolution.) 1 degree = 1° = Ую 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, Edward Broughton Waite - 1916 - 71 sider
...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... | |
| Nathaniel Bowditch - 1916 - 836 sider
...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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