 | Euclid, Robert Simson - 1821 - 514 páginas
...arch AC is called the measure of the angle ABC. II. The circumference of a circle is supposed to lie divided into 360 equal parts called degrees; and each...equal ' ^ parts called minutes, and each minute into 60 equal parts called seconds, &c. And as many degrees, minutes, seconds, &c. as are contained in any... | |
 | Edward Bruce (bookseller.) - 1821 - 418 páginas
...the centre. / 1. A less circle divides a globe into two unequal parts. Every circle, great or small, is supposed to be divided into 360 equal parts, called degrees; and every degree is subdivided into 60 minutes. Degrees are marked °, and minutes'. Thus,—4 deg. 15... | |
 | Bewick Bridge - 1821 - 648 páginas
...For the purpose of exhibiting arithmetically the magnitude of angles, the whole circumference of the circle is supposed to be divided into 360 equal parts, called degrees; each degree into 60 equal parts, called minutes; each minute into 60 equal parts, called seconds; &c.... | |
 | Sidney Edwards Morse - 1822 - 706 páginas
...diameter is a straight line drawn through the centre from one side of the circumference to the other. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 minutes ; each minute into GO seconds. An arc of a circle is part of its circumference.... | |
 | Sidney Edwards Morse - 1822 - 706 páginas
...diameter is a straight line drawn through the centre from one side of the circumference to the other. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 minutes ; each minute into 60 seconds. An arc of a circle is part of its circumference.... | |
 | Anthony Nesbit, W. Little - 1822 - 916 páginas
...part of a circle, as ADC. " *fi. A sector is any part of a circle bounded by an arc sad two radii. 47. 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,... | |
 | Joseph Emerson Worcester - 1822 - 354 páginas
...ecli^tc, and the two colurvs. equal parts. These are four, the two tropics, and (he two polar circles. 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 00 equal parts, called seconds.... | |
 | John Imison - 1822 - 488 páginas
...radii and an arc, as BI K. (Fig. 19.) 38. The circumference of every circle, whether great or small, is supposed to be divided into 360 equal parts, called degrees ; and every degree into 60 parts, called minutes ; and every minute into 60 seconds. To measure the inclination... | |
 | Rev. John Allen - 1822 - 508 páginas
...have supposed the whole circumference of a circle to be divided in 360 equal parts, called degrees, each degree into 60 equal parts, called minutes, and each minute into 60 equal parts, called seconds, Stc. and a circle being described from the vertex of an angle, as a... | |
 | William Jillard Hort - 1822 - 308 páginas
...and in more modern times, Napier, the inventor of logarithms, and Briggs. In plane trigonometry, the circle is supposed to be divided into 360 equal parts, called degrees ; every degree into 60 equal parts, called minutes ; every minute into 60 equal parts, called seconds... | |
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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 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c. 
