| John Lee Comstock - Physics - 1813 - 442 pages
...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 - Surveying - 1814 - 556 pages
...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.... | |
| Abner Alden - English language - 1814 - 222 pages
...the earth to be circumscribed by a .certain number of circles ; and each circle to be divided into **360 equal parts, called degrees ; and each degree...minutes ; and each minute into 60 equal parts, called** seconds. Q. What is a great circle ? A. A great circle is one, whose plane is supposed to pas through... | |
| Euclides - 1814 - 558 pages
...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 - Mathematics - 1814 - 528 pages
...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... | |
| Surveying - 1814 - 402 pages
...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 pages
...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 - Geography - 1816 - 220 pages
...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 - Surveying - 1817 - 206 pages
...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 - 304 pages
...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... | |
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