Libros Libros 101 - 110 de 113 sobre The circumference of every circle is supposed to be divided into 360 equal parts,...
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 and Spherical Trigonometry: With Their Applications to ... - Página 4
por Olinthus Gregory - 1816 - 244 páginas
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## The Elementary Arithmetic: Oral and Written

Albert Newton Raub - 1894 - 192 páginas
...and limited by the circumference, as AD, is called a Diameter. 129. Every 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. TABLE. 60 seconds (") =1 minute, (' ). 60 minutes...
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## The Normal Standard Arithmetic: By Analysis and Induction, Designed for ...

Edward Brooks - 1895 - 415 páginas
...circumference is called a quadrant. 241. For the purpose of measuring angles the circumference is divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes; each minute into 60 equal parts, called seconds. 242. Any angle having its vertex at the centre is measured...
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## The Normal Rudiments of Arithmetic, Oral and Written: Designed for Primary ...

Edward Brooks - 1895 - 239 páginas
...point within called the centre. 3. For the purpose of measuring angles the circumference is divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes; each minute into 60 equal parts, called seconds. 4. Any angle at the centre, as BCD, is measured by the...
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## A Complete Arithmetic: With Oral and Written Exercises

George Washington Hull - 1895 - 352 páginas
...quadrant. An Arc is any part of a circumference. For convenience of measuring the circumference is divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; each minute into 60 equal parts, called seconds. TABLE. 60 seconds (") = 1 minute, '. 60 minutes = 1 degree,...
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## Plane Geometry

George D. Pettee - 1896 - 253 páginas
....-.theirlimits=J 175. Sen. Both the circumference of a circle and the angular space about the centre are divided into 360 equal parts called degrees, each degree into 60 equal parts called minutes, and each minute into CO equal parts called seconds. Since central angles vary as their intercepted...
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## Coal and Metal Miners' Pocketbook of Principles, Rules, Formulas, and Tables ...

International Correspondence Schools - 1900 - 637 páginas
...circumference being at the vertex of the angle. For measuring angles, the circumference is divided into :i60 equal parts. called degrees; each degree into 60 equal parts called minutes. A quadrant is one-fourth the circumference of a circle, or 90°. The complement of an arc is 90° minus...
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## The Elements of Geometry

Walter Nelson Bush, John Bernard Clarke - 1905 - 355 páginas
...may be stated thus : A central angle is measured by 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°...
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## Mechanics and Hydrostatics for Beginners

Sidney Luxton Loney - 1905 - 290 páginas
...inconvenient unit of measurement on 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...
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## A School Geometry, Partes1-4

Henry Sinclair Hall - 1908 - 138 páginas
...which it is perpendicular to AB. (ii) All right angles are equal. A right angle is divided into 90 equal parts called degrees (°) ; each degree into 60 equal parts called minutes (') ; each minute into 60 equal parts called seconds ("). In the above figure, if OC revolves about O from the...
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## Complete Arithmetic, Parts 2 and #3

George E. Mercer - 1909
...circumference is an arc. A to B and B to C are 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....
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