 | 1801 - 446 pàgines
...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 1 80 degrees, and a quadrant... | |
 | Alexander Adam - 1802 - 914 pàgines
...alfo the Jem- diameter. The di;trne'erj and 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.... | |
 | Robert Simson - 1804 - 530 pàgines
...meeting BA, BC, in A, C ; the arch AC is called the meafure of the angle ABC. II. The circumference of a circle is fuppofed to be divided into 360 equal parts...and each degree into 60 equal parts called minutes, and each minute into 60 equal parts called feconds, &c. And as many degrees, minutes, feconds, &c.... | |
 | Abel Flint - 1804 - 226 pàgines
...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 Seconds ; jktl these into Thirds, &c. Ifote. .-Since... | |
 | Robert Gibson - 1806 - 486 pàgines
...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, and these into thirds, fourths, &c. these parts... | |
 | Robert Simson - 1806 - 546 pàgines
...called the measure of th« angle ABC. n. The circumference of a circle is supposed to be divided info 360 equal parts called degrees, and each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds, i: >.. And as many degrees, minutes, seconds, &c.... | |
 | John Hamilton Moore - 1807 - 586 pàgines
...circles, whether great or fmall, are actually, or fuppofed to have, their circumference divided 11110360 equal parts, called degrees, and each degree into 60 equal parts, called minutes, and each minute into 60 equal parts, called féconds, and fu on into thirds, fourths, &c. All angles... | |
 | Abel Flint - 1808 - 190 pàgines
...equal parts, called Semicircles; asAB or DE. Fig. 5. 14. The Circumference of every Circle is supposcfl 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, 8tc. Note. Since all... | |
 | Benjamin Workman - 1809 - 218 pàgines
...the middle, but divides it unequally. LeflVr circles are coai* monly parallel to fome great circle7. Every circle is fuppofed to be divided into 360 equal...and each degree into 60 equal parts, called Minutes ; each minute in 60 Seconds, £c. 8. A degree of a great circle, on the earth, contains 60 geographical... | |
 | Thomas Simpson - 1810 - 168 pàgines
...supposed divided into some assigned number of equal parts. 2. The periphery 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, or second minutes, &c. 3. Any part AB (fig.... | |
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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, etc. 
