| John Lee Comstock - 1813 - 340 Seiten
...star a. 762. Each of the 12 signs of the zodiac is divided into 30 smaller parts, called degrees ; **each degree into 60 equal parts, called minutes, and each minute into 60** parts, called seconds. The division of the zodiac into signs, is of very ancient date, each sign having... | |
| Robert Gibson - 1814 - 508 Seiten
...isdoublethe radius, 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...minutes, and each minute into 60 equal parts called** seconds, and tiiese into thirds, fourths, &c. these parts being greater or less as the radius is.17.... | |
| Euclides - 1814
...of the angle ABC. II. The circumference of a circle is supposed to be divided into 360 equal part* **called degrees, and each degree into 60 equal parts...minutes, and each minute into 60 equal parts called** seconds, &c. And as many degrees, minutes, seconds, &c. as are contained in any arch, of so many degrees,... | |
| Charles Butler - 1814
...angle. It is usual to divide the whole circumference into 360 equal parts called degrees, to subdivide **each degree into 60 equal parts called minutes, and each minute into 60 equal parts called** seconds, &c. wherefore, if an angle at the centre be subtended by an arc which consists of suppose... | |
| 1814 - 227 Seiten
...both segments of the circle, as DFE and DGE. 12. A Circle is actually, or supposed to be divided into **360 equal parts, called Degrees, and each degree into 60 equal parts, called Minutes ; and** these into seconds, &c. 13. An Angle is so many degrees, as lines drawn from the centre of a circle,... | |
| Euclides - 1816 - 528 Seiten
...called the measure of the angle ABC. II. The circumference of a circle is supposed to be divided fnto **360 equal parts called degrees, and each degree into...minutes, and each minute into 60 equal parts called** seconds, &c. And as many degrees, minutes, seconds, &c. as are contained in any arc h, of so many degrees,... | |
| Nathaniel Dwight - 1816 - 213 Seiten
...A. 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** seconds. Q. What is a meridian ? A. It is a great circle cutting the equator at right angle's', and... | |
| John Gummere - 1817 - 206 Seiten
...determined. 2. The periphery 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, See. I 3. The measure of- an angle is the arc of a circle, contained between the two lines... | |
| Thomas Keith - 1817
...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. The angles are measured by the number of degrees cut off from the circle, by the lines which... | |
| 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,... | |
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