 | Abel Flint - 1818 - 184 pàgines
...the Circle into two equal parts, called Semicircles ; as AB or DE. Fig 5. 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... | |
 | Miles Bland - 1819 - 444 pàgines
...Till lately, Geometers almost unanimously agreed to divide the circumference of the circle into 36o equal parts called Degrees ; each degree into 60 equal parts called Minutes ; and each minute into 60 equal parts called Seconds, &c. This method appeared to the Greek Geometers... | |
 | Miles Bland - 1819 - 442 pàgines
...Till lately, Geometers almost unanimously agreed to divide the circumference of the circle into 36o equal parts called Degrees ; each degree into 60 equal parts called Minutes; and each minute into 60 equal parts called Seconds, &c. This method appeared to the Greek Geometers... | |
 | William Hawney - 1820 - 336 pàgines
...measure of the angle DBE aud the arch GH is the measure of the angle ABC. 1*. The circumference of every circle is supposed to be divided into 360 equal...; each degree into 60 equal parts, called minutes : and each minute into 60 equal parts, called seconds. Angles are measured by the number of degrees... | |
 | Bewick Bridge - 1821 - 648 pàgines
...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,...each minute into 60 equal parts, called seconds; &c. &c. And since arcs are the measures of angles, every angle may be said to be an angle of such number... | |
 | Thomas Simpson - 1821 - 426 pàgines
...about 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... | |
 | Joseph Emerson Worcester - 1822 - 354 pàgines
...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...; 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... | |
 | Anthony Nesbit, W. Little - 1822 - 916 pàgines
...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...; each degree into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds, &c. 48. The arc of a quadrant contains 90 degrees,... | |
 | Sidney Edwards Morse - 1822 - 706 pàgines
...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. All angles... | |
 | Sidney Edwards Morse - 1822 - 706 pàgines
...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. All angles... | |
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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. 
