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" 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. "
Cyclopedia of Carpentry and Contracting ...: Architectural drawing ... - Page 61
1910
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Cyclopedia of Civil Engineering: Plane surveying; mechanical drawing

American School of Correspondence - Civil engineering - 1908 - 474 pages
...called degrees. Thus we can say that an angle contains 45 degrees, which means that it is •gfa = | of a circumference. In order to obtain accurate measurements each degree is divided into GO equal parts called minutes and each minute is divided into 60 equal parts called seconds. Angles...
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Cyclopedia of Civil Engineering: A General Reference Work on Surveying ...

Frederick Eugene Turneaure - Civil engineering - 1909 - 456 pages
...parts called degrees. Thus we can say that an angle contains 45 degrees, which means that it is ^fo = ^ of a circumference. In order to obtain accurate measurements...divided into 60 equal parts called seconds. Angles and 180 arcs are usually measured by means of an instrument called a protractor which has already been...
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Cyclopedia of Architecture: Architectural drawing. Lettering

1912 - 558 pages
...called degrees, Fig. 67. Thus, it may be said that a certain angle contains 45 degrees, ie, it is =i of a circumference. In order to obtain accurate measurements...into 60 equal parts called minutes and each minute into 60 equal parts called seconds. f65\ {BO /OS F1 g - 6L Angular Measurement SOLIDS A solid has three...
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Plane and Spherical Trigonometry

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...minute is divided into 60 equal parts, called seconds. The symbols 1°, 1', 1", are employed to denote one degree, one minute, and one second respectively....
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Plane Trigonometry

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...minute is divided into 60 equal parts, called seconds. The symbols 1°, 1', 1", are employed to denote one degree, one minute, and one second respectively....
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Plane Geometry Developed by the Syllabus Method

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 minutes, and each minute into 60 equal parts called seconds. 73. How many degrees are there in an interior angle of a regular...
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How to Read a Drawing

Vincent C. Getty - Mechanical drawing - 1912 - 92 pages
...or in eighths, each part would contain 45 degrees, etc. In order to obtain very accurate dimensions, each degree is divided into 60 equal parts called minutes, and each minute is again divided into 60 equal parts called seconds. Instead of using words to express degrees, minutes,...
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Practical Mathematics: Instruction Paper, Volume 3

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 minutes, ', and each minute into 60 equal parts called seconds, ". Thus to represent an angle of 23 degrees, 47 minutes, and 9...
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Hopkins and Underwood's Arithmetic: Book One-two, Book 2

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 minutes, and each minute into 60 equal parts called seconds. As one degree is ^^ of any circumference, a degree on one circle...
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Plane Trigonometry with Tables

Claude Irwin Palmer, Charles Wilbur Leigh - Plane trigonometry - 1914 - 308 pages
...so on for any amount of 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,...
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