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書籍 The circumference of every circle is supposed to be divided into 360 equal parts,... の書籍検索結果
" 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. "
A Treatise on Surveying, Containing the Theory and Practice: To which is ... - 34 ページ
John Gummere 著 - 1814 - 346 ページ
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The Description and Use of the Globes, and the Orrery: To which is Prefixed ...

Joseph Harris - 1732 - 190 ページ
...Pole is placed, and the opppfite one is the Southern Hemifphere. The Aftronomers divide all Circles into 360 equal Parts called 'Degrees, each Degree into 60 equal Parts called Minutes, each Minute into 60 Seconds, &c. But befides this Divifion into Degrees, the Equir noftial is commonly...

An essay on mechanical geometry, explanatory of a set of models

Benjamin Donne - 1796
...calculating the proportion which angles bear to each other, fuppofe the circumference of every circle to be divided into 360 equal parts, called Degrees ; each degree into 60 equal parts, called minutes ; each minute into 60 equal parts named feconds, &c. Ar. B. Sometimes the circumference of a circle...

A Complete System of Practical Arithmetic, with Various Branches in the ...

William Taylor (teacher of the mathematics.) - 1800 - 519 ページ
...a' femi-eircle • half the diameter is called the Radius. 8. The circumference of every circle 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, &c. Any part of the the circumference is called an Arch....

Mathematics: Compiled from the Best Authors and Intended to be the ..., 第 1 巻

1801
...that, which stands at the angular point, is rend in the middle. C 56. The 39° 5 6. 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 do seconds, and so on. Hence a semicircle contains...

A Summary of Geography and History, Both Ancient and Modern ...: With an ...

Alexander Adam - 1802 - 858 ページ
...radii of the fame circle are always equal to one another. The circumference of every circle is fuppofed to be divided into 360 equal parts, called degrees ; each degree into 60 mi* ñutes \ each minute into 60 feccnds ; and thefe into thirds, fourths, &c. greater or ¡efs according...

A System of Geometry and Trigonometry: Together with a Treatise on Surveying ...

Abel Flint - 1804 - 168 ページ
...it divides the Circle into two equal parts, called Semicircles ; as AB or DE. 14. The. Circumference of every Circle is supposed to be Divided into 360 equal parts, called Degrees ; and each Degree into 60 equal parts, called Minutes ; and each Minute into 60 equal parts, called...

A Treatise on Plane and Spherical Trigonometry: With Their Most Useful ...

John Bonnycastle - 1806 - 419 ページ
...by an arc of a circle contained between its two legs, and having the angular point for its centre. Every circle is supposed to be divided into 360 equal...; each degree into 60 equal parts, called minutes ; each minute into 60 equal parts, called seconds ; &c. So that a semicircle, or half the circumference,...

A Treatise of Practical Surveying: Which is Demonstrated from Its First ...

Robert Gibson - 1806 - 452 ページ
...parts called semicircles ; and is double the radius, as AB or DE. fig. 8. • 18. The circumference of every circle is supposed to be divided into 360 equal parts called degrees, and each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds,...

Elements of Natural Philosophy: Arranged Under the Following Heads: Matter ...

1808 - 272 ページ
...Ecliptic. This circle we suppose to be divided into 12 equal parts, called Signs ; each sign . into 30 equal parts, called Degrees ; each degree into 60 equal parts called Minutes ; and every minute into 60 equal parts, called Seconds; so that a second is the 60th part of a minute ; a...

Astronomy Explained Upon Sir Isaac Newton's Principles: And Made Easy to ...

James Ferguson - 1809 - 533 ページ
...ecliptic. tic. This circle we suppose to be divided into 12 equal parts, called signs ; each sign into 30 equal parts, called degrees; each degree into 60 equal parts, called minutes; and each minute into 60 into 60 equal parts, called seconds : so that a second Plate I. is the 60th part of...




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