 | 1912 - 558 pages
...angle contains 45 degrees, ie, it is =i of a circumference. In order to obtain accurate measurements each degree is divided into 60 equal parts called...and each minute into 60 equal parts called seconds. f65\ {BO /OS F1 g - 6L Angular Measurement SOLIDS A solid has three dimensions—length, breadth, and... | |
 | George E. Mercer - Arithmetic - 1909 - 312 pages
...arcs. The circumference of every circle is divided into 300 equal parts called degrees, each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. jJ5 of a circumference is called 1 degree of arc. J of a circumference, or 90 degrees, is called a... | |
 | William A. Radford, Alfred Sidney Johnson - Architecture - 1909 - 384 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... | |
 | Eugene Randolph Smith - Geometry, Plane - 1909 - 424 pages
...How many sides has the polygon each of whose interior angles is six sevenths of a straight angle ? 60 equal parts called minutes, 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.... | |
 | Frederick Eugene Turneaure - Civil engineering - 1909 - 456 pages
...degrees, which means that it is ^fo = ^ 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 180 arcs are usually measured by means of... | |
 | Levi Leonard Conant - Trigonometry - 1909 - 320 pages
...unit of measure is the right angle. The right angle is divided into 90 equal parts, called degrees; each degree is divided into 60 equal parts, called minutes; and each minute is divided into 60 equal parts, called seconds. The symbols 1°, 1', 1", are employed to denote one... | |
 | Levi Leonard Conant - Plane trigonometry - 1909 - 290 pages
...unit of measure is the right angle. The right angle is divided into 90 equal parts, called degrees; each degree is divided into 60 equal parts, called minutes; and each minute is divided into 60 equal parts, called seconds. The symbols 1°, 1', 1", are employed to denote one... | |
 | Architectural drawing - 1910 - 430 pages
...degrees, which means that it is •j^j- = | 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... | |
 | Glenn Moody Hobbs - 1912 - 100 pages
...angles, some device like a protractor, Fig. 14, showing degrees and fractions of degrees, is necessary. Each degree is divided into 60 equal parts called...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 - Arithmetic - 1912 - 406 pages
...convenient to use arc units. The whole circumference 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. As one degree is ^^ of any circumference, a degree on one circle is not of the same size as a degree... | |
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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. 
