 | Robert Gibson - 1821 - 544 páginas
...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 00 equal parts called seconds, and- these into thirds, fourths, &c. these parts being greater or less as the radius is. 17. A chord... | |
 | Joseph Emerson Worcester - 1822 - 322 páginas
...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 00 equal parts, called seconds. They are marked thus, 23° 28' 16" ; i- e. 33 degrees, 28 minute!", and 16 seconds. The Equator is... | |
 | Charles Davies - 1886 - 324 páginas
...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...called seconds. Degrees, minutes, and seconds, are designated respectively DefInItIonsby the characters ° 1 "- For example, ten degrees, eighteen minutes,... | |
 | Alfred Newsom Niblett - 1861
...circumference of every circle is supposed to be divided into 300 equal parts, called degrees; each degree into 00 equal parts, called minutes; and each minute into 00 equal parts, called seconds. The arc of a quadrant contains 90 degrees, which is the measure of a right angle. RULES. 1. Multiply... | |
 | William Findlay Shunk - 1880 - 318 páginas
...circle being at the vertex, and its radius being 1. The circle, for convenience, is divided into 360 equal parts called degrees; 90 of these parts are...00 equal parts called minutes, and each minute into 60 equal parts called seconds. Degrees, minutes, and seconds are denoted by the symbols °, ', ": thus... | |
 | William Findlay Shunk - 1886 - 325 páginas
...divided into 360 equal parts called degrees; 90 of these parts are inclnded in a quadrant, which inclndes one-quarter of the circle, and is the measure of a right angle. Each degree is further divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. Degrees, minutes,... | |
 | Charles Davies - 1886 - 324 páginas
...to be divided into 360 «qual parts, called degrees ; each degree is supposed to be divided into 60 equal parts, called minutes ; and each minute into 00 equal parts, called seconds. TRIGONOMETRY Definitions. by the characters ° ' ". For example, ten degrees, eighteen minutes, and... | |
 | William Findlay Shunk - 1890 - 339 páginas
...circle being at the vertex, and its radius being 1. The circle, for convenience, is divided into 360 equal parts called degrees; 90 of these parts are...a right angle. Each degree is further divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. Degrees, minutes,... | |
 | International Correspondence Schools - 1900
...; every degree is subdivided into 60 equal parts, called minutes, and every minute is again divided into 00 equal parts, called seconds. Degrees, minutes and seconds are denoted by the symbols °, ', '. Thus, the expression 37° 14' 44', is read 37 degrees, 14 minutes and 44 seconds. Since one... | |
 | Nathaniel Bowditch - 1906 - 652 páginas
...their circumferences divided into 360 equal parts, called degrees; each degree is divided into (Ю equal parts, called minutes; and each minute into 00 equal parts, called seconds; an arc is measured by the number of degrees, minutes, and seconds that it contains. A *¡>here is a... | |
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The operation of finding the unknown parts is called the solution of the triangle. 2. A plane angle is measured by the arc of a circle included between its sides; the centre of the circle being at the vertex, and its radius being 1. The circle, for convenience,... 