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" The Circumference of every circle is supposed to be divided into 360 equal parts, called Degrees ; and each degree into 60 Minutes, each minute into 60 Seconds, and so on. "
The Theory and Practice of Surveying: Containing All the Instructions ... - Σελίδα 39
των Robert Gibson - 1814 - 508 σελίδες
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Elements of Geometry and Trigonometry from the Works of A.M. Legendre ...

Charles Davies - 1854 - 432 σελίδες
...the six parts is given. 3. For the purpose of trigonometrical calculation, the circumference of the circle is supposed to be divided into 360 equal parts, called degrees ; each degree is supposed to be divided into 60 equal parts, called minutes; and each minute into 60...

Elements of Plane and Spherical Trigonometry: With Their Applications to ...

Elias Loomis - 1855 - 178 σελίδες
...Trigonometry treats of plane triangles; Spherical Trigonometry treats of spherical triangles. (19.) The circumference of every circle is supposed to' be divided into 360 equal parts, called degrees ; each degree into 60 minutes, and each minute into 60 seconds. Degrees, minutes, and seconds are designated...

New University Arithmetic: Embracing the Science of Numbers, and Their ...

Charles Davies - 1856 - 437 σελίδες
...latitude and longitude, in measuring the motions of the heavenly bodies, and also in measuring angles. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divided into CO minutes, and each minute into 60 seconds. TABLE. 422. For what is circular...

Arithmetic on the Productive System: Accompanied by a Key and Cubical Blocks

Roswell Chamberlain Smith - 1856 - 311 σελίδες
...degrees, the whole circle of the Zodiac.7 75. Every circle, whether the greatest or least possible, is divided into 360 equal parts, called degrees, and each degree into 60 equal 1 PLANET, from planao, G. to wander, means a celestial (4) body, which revolvea about the sun or other...

A course of practical geometry for mechanics

William Pease - 1856
...standard of measurement for angles has been obtained. Among English mathematicians, the circumference of a circle is supposed to be divided into 360 equal parts, called degrees ; an angle which is formed by two radii will therefore contain a certain number of those parts, and...

The American House Carpenters' and Joiners' Assistant

Lucius D. Gould - 1857
...middle; thus, the angle contained by the line A c and E o, is called the angle A CE, or EC A. Fig. 9. The circumference of every circle is supposed to be divided into 360 equal parts, I Plate 8. PLATE IX. Is a plastered groin arch designed for an oblong ceiling, and its angles represented...

A New System of Arithmetic, on an Improved Plan, Embracing the Rules of ...

Charles Guilford Burnham - 1857
...12 signs,or360° ............................ 1 circle. " Every circle, without regard to its size, is supposed to be divided into 360 equal parts, called degrees, and these again to be subdivided into minutes and seconds ; so that the absolute quantity expressed by...

Elements of Geometry and Trigonometry from the Works of A. M. Legendre ...

Adrien Marie Legendre, Charles Davies - 1857 - 432 σελίδες
...the six parts is given. 3. For the purpose of trigonometrical calculation, the circumference of the circle is supposed to be divided into 360 equal parts, called degrees ; each degree is supposed to be divided into 60 equal parts, called minutes; and each minute into 60...

Mensuration and Practical Geometry: Containing Tables of Weights and ...

Charles Haynes Haswell - 1858 - 322 σελίδες
...that touches a circle without cutting it. A Cotangent is the tangent of the complement of the arc. The Circumference of every circle is supposed to be divided into 360 equal parts, called Degrees ; each degree into 60 Minutes, and each minute into 60 Seconds, and so on. The Complement of an angle...

The Scientific and Literary Treasury: A New and Popular Encyclopedia of the ...

Samuel Maunder - 1858 - 832 σελίδες
...compasses, nxing one foot in the centre and turning the other round to trace out the circumference. The circumference of every circle is supposed to be divided into 360 equal part a, called degrees and marked " ; and each degree into GU minutes, marked'. The word Circle is...




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