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" 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. "
Elements of Plane Trigonometry: And Their Application to the Measurement of ... - Página 14
por William Frothingham Bradbury - 1864
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Plane Trigonometry with Tables

Claude Irwin Palmer, Charles Wilbur Leigh - 1914 - 288 páginas
...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...
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Intermediate Arithmetic, Partes2-3

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...
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Elementary Geography

Harmon Bay Niver - 1915 - 360 páginas
...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....
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American Practical Navigator: An Epitome of Navigation and Nautical Astronomy

Nathaniel Bowditch - 1916 - 836 páginas
...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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Plane and Spherical Trigonometry

Claude Irwin Palmer, Charles Wilbur Leigh - 1916 - 188 páginas
...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...
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1. Mathematical Tables

Edward Vermilye Huntington, Louis Albert Fischer - 1916 - 186 páginas
...(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...
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Mechanical Drawing: Instruction Paper, Parte2

Ervin Kenison - 1916 - 71 páginas
...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...
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Cyclopedia of Architecture, Carpentry, and Building: A General Reference ...

1917
...ie, it is -^ =£ of a circumference. Li order to obtain accurate measurements each degree is divided into 60 equal parts called minutes and each minute into 60 equal parts called seconds. r:~ S7_ Angular Measurement /OS /so 39 SOLIDS A solid has three dimensions — length, breadth, and...
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Modern Carpentry: A Practical Manual...

Fred T.. Hodgson - 1917 - 402 páginas
...materially in understanding other problems. The circumference of every circle is measured by being supposed to be divided into 360 equal parts, called degrees; each degree containing 60 minutes, a smaller division, and each minute into 60 seconds, a still smaller division....
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Modern Carpentry: A Practical Manual...

Fred T.. Hodgson - 1917 - 402 páginas
...materially in understanding other problems. The circumference of every circle is measured by being supposed to be divided into 360 equal parts, called degrees; each degree containing 60 minutes, a «4 smaller division, and each minute into 60 seconds, a still smaller division....
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