| Miles Bland - 1819 - 377 Seiten
...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 to afford some facilities for calculations,... | |
| William Hawney - 1820 - 312 Seiten
...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. Angles are measured by the number of degrees cut oft'from the circle, by the lines which form... | |
| Thomas Simpson - 1821 - 408 Seiten
...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...minutes, and each minute into 60 equal parts, called** seconds, or second minutes, <Jc. Any part of the periphery is called an arch, and is measured by the... | |
| Robert Gibson - 1821 - 544 Seiten
...theradius,as AB or DE. fig. 8. 16. 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** 00 equal parts called seconds, and- these into thirds, fourths, &c. these parts being greater or less... | |
| Euclid, Rev. John Allen - 1822 - 494 Seiten
...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 centre, an angle is said... | |
| William Jillard Hort - 1822
...lines CA and CH. 2. If the circumference of a circle 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 ; and so on ; then, as many degrees, minutes, and seconds, &c. as are in any arch ; so many... | |
| Anthony Nesbit, W. Little - 1822
...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, &c. 48. The arc of a quadrant contains 90 degrees, which is the measure of a right angle.... | |
| Euclid, Rev. John Allen - 1822 - 494 Seiten
...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,** cal:ed seconds, &c. and a circle being described iron) the vertex of an angle, as a centre, an angle... | |
| Joseph Emerson Worcester - 1822 - 322 Seiten
...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. They are marked thus, 23° 28' 16" ; i- e. 33 degrees, 28 minute!",... | |
| Anthony Nesbit - 1824 - 434 Seiten
...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. 48. The arc of a quadrant contains 90 degrees, which is the measure of a right angle. 49.... | |
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