 | Jeremiah Day - 1851 - 418 σελίδες
...purpose of measuring the latter, a circle is introduced. The periphery of every circle, whether great or small, is supposed to be divided into 360 equal parts called degrres, each degree into 60 minutes, each minute into 60 seconds, each second into 60 thirds, &c.,... | |
 | Richard Phillips (sir.) - 1851
...globe, and, consequently, divide it into two unequal parts. 107. All circles, whether great or less, are supposed to be divided into 360 equal parts, called degrees ; each degree into sixty equal parts, called minutes ; and each minute into sixty equal parts called seconds. Degrees... | |
 | Charles Davies - 1852 - 344 σελίδες
...longitude, and also in measuring the motions of the heavenly bodies. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divided into 60 minutes, and each minute into 60 seconds. TABLE. 1. How many seconds in 3 minutes ? In 4 ? In 5 ? 2.... | |
 | Thomas Kentish - 1852 - 272 σελίδες
...problems repeated at the end of the Uses of the Slide Rule. TRIGONOMETRY. THE circumference of a circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divided into 60 minutes; each minute into GO seconds; and so on. Degrees are marked with a small ° at the top of the... | |
 | Charles Davies - 1852 - 412 σελίδες
...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 equal parts,... | |
 | Adrien Marie Legendre - 1852 - 436 σελίδες
...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 equal parts, called... | |
 | Charles Davies - 1886 - 340 σελίδες
...parts is given. 21. 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 di. rided into 60 equal parts, called minutes ; and each minute into 00 equal parts,... | |
 | Jeremiah Joyce - 1852 - 430 σελίδες
...arcs of a circle contained by the two legs, having the angular point for its centre. 4. 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. Degrees,... | |
 | Samuel Maunder - 1853 - 872 σελίδες
...circle, is a sector having a quarter of the circumference for its arc. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees; each degree ciples of geometry are explained in definitions and axioms. The following are the most important definitions.... | |
 | Charles Haynes Haswell - 1853 - 318 σελίδες
...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 BO on. The Complement of an angle is what remains... | |
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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. 
