 | Walter Nelson Bush, John Bernard Clarke - Geometry - 1905 - 378 pages
...its intercepted arc. The circumference 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. For brevity, an angle measured by an arc of 1° is called an angle of 1° ; etc. NOTE. — This division... | |
 | John Marvin Colaw, Frank Williamson Duke - Arithmetic - 1906 - 408 pages
...passing around the earth on its surface ? 444. In measuring circumferences, each degree is divided in 60 equal parts, called minutes, and each minute into 60 equal parts, called seconds. In this measure, degrees, minutes, and seconds are written with symbols. Thus, 3 degrees, 25 minutes,... | |
 | American School (Lansing, Ill.) - Architectural drawing - 1906 - 426 pages
...degrees, which means that it is •£fa = I of a circumference. In order to obtain accurate measurements each degree is divided into 60 equal parts called minutes and each minute is divided into 6O equal parts called seconds. Angles and arcs are usually measured by means of an... | |
 | Drawing - 1906 - 424 pages
...degrees, which means that it is Tj-g 6 ^ = -J of a circumference. In older to obtain accurate measurements each degree is divided into 60 equal parts called minutes and each minute is divided into 60 equal parts called seconds. Angles and arcs are usually measured by means of an... | |
 | American School (Chicago, Ill.) - Engineering - 1906 - 586 pages
...degrees, which means that it is ^g5^ — I of a circumference. In order to obtain accurate measurements each degree is divided into 60 equal parts called minutes and each minute is divided into 60 equal parts called seconds. Angles and arcs are usually measured by means of an... | |
 | Erwin Herrick Schuyler, James Hixon Van Sickle - Arithmetic - 1906 - 216 pages
...that every circumference is divided into 360 equal parts, called degrees. Now we must learn that every degree is divided into 60 equal parts, called minutes, and each minute is divided into 60 equal parts, called seconds. Thus we have the table of CIRCULAR (OR ANGULAR) MEASURE... | |
 | William A. Radford - 1907 - 332 pages
...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... | |
 | Sidney Luxton Loney - Mechanics - 1907 - 332 pages
...account of its size. We therefore subdivide a right angle into 90 equal parts called degrees, each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. The symbols used for a degree, a minute, and a second are 1°, 1', and 1". Thus 10° 11' 12" means... | |
 | Astronomy - 1907 - 710 pages
...measuring arc is a part is divided into 360 equal parts, called degrees; each degree is subdivided into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds. The magnitude of an angle is then expressed by the number of degrees, minutes, and seconds that its... | |
 | Eugene Randolph Smith - Geometry, Plane - 1909 - 204 pages
...For convenience in numerical calculations, a perigon is divided into 360 equal parts, called degrees; each degree is divided into 60 equal parts called...and each minute into 60 equal parts called seconds. 73. How many degrees are there in an interior angle of a regular polygon of 15 sides? of n-sides? 74.... | |
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Every circumference of a. circle, whether the circle be large or small, is supposed to be 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. 
