 | Richard Turner - 1787 - 88 pàgines
...is) to find how many Miles it is round. A Line going round our Globe, is fuppofed by Mathematicians to be divided into 360 equal Parts, called Degrees ; and each of thofe Parts are fuppofed to be divided into 60 other equal Parts, called Minutes. Now our Countryman,... | |
 | 1801 - 446 pàgines
...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 1 80 degrees,... | |
 | Abel Flint - 1804 - 226 pàgines
...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 Seconds ;... | |
 | Robert Gibson - 1806 - 486 pàgines
...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, and... | |
 | John Bonnycastle - 1806 - 464 pàgines
...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 parts, called degrees ; each degree into 60 equal parts, called minutes ; each minute into 60 equal parts, called seconds... | |
 | Euclid - 1810 - 554 pàgines
...meeting BA, BC in A, C; the arch AC is called the measure of the angle ABC. II. The circumference of a 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, &c.... | |
 | Thomas Simpson - 1810 - 168 pàgines
...the circle be 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... | |
 | Richard Turner - 1810 - 384 pàgines
...is) to find how many miles it is round. A line going round our globe, is fuppofed by .mathematicians to be divided into 360 equal parts, called degrees; and each, of thefe .parts is fuppofed to be divided into 60 other equal parts, called minutes. Now our countryman,... | |
 | Thomas Keith - 1810 - 478 pàgines
...measure of the angle aBC and the arc DE is the measure of the angle ABC. (H) The circumference of every 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. The... | |
 | Robert Gibson - 1811 - 580 pàgines
...called semicircles ; and is double the radius, as AB or DE. fig. 8. m *!6. 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 caled seconds, and these... | |
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The circumference of every circle is supposed to be divided into 360 equal parts, called degrees... 
