| Nathaniel Dwight - Geography - 1816 - 213 pages
...parts. Q. What are the degrees of a circle ? A. The circumference of every circle is supposed to be **divided into 360 equal parts called degrees ; each...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... | |
| Euclides - Euclid's Elements - 1816 - 528 pages
...II. The circumference of a circle is supposed to be divided fnto 360 equal parts called degrees, and **each degree into 60 equal parts called 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, minutes,... | |
| Olinthus Gregory - Plane trigonometry - 1816 - 244 pages
...of the angle ACB. 10. The circumference of a circle is supposed to be divided, or to be divisible, **into 360 equal parts, called degrees; each degree into 60 equal parts, called minutes** ; each of these into 60 equal parts, called seconds ; and so on, to the minutest possible subdivisions.... | |
| Thomas Keith, William Hawney - 1817
...the arc G n is the measure of the angle ABC. 14. The circumference of every circle is supposed to be **divided into 360 equal parts, called degrees ; each...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 form the angles.... | |
| John Gummere - Plane trigonometry - 1817 - 206 pages
...three angles, are given, the others are determined. 2. The periphery of every circle is supposed to be **divided into 360 equal parts, called degrees ; each...and each minute into 60 equal parts, called seconds,** 8cc. 3. The measure of an angle is the arc of a circle, con-, tuined between the two lines that form... | |
| Miles Bland - Geometry - 1819 - 377 pages
...Till lately, Geometers almost unanimously agreed to divide the circumference of the circle into 36o **equal parts called Degrees ; each degree into 60 equal...and each minute into 60 equal parts called Seconds,** &c. This method appeared to the Greek Geometers to afford some facilities for calculations, in consequence... | |
| Miles Bland - Geometry - 1819 - 377 pages
...Till lately, Geometers almost unanimously agreed to divide the circumference of the circle into 36o **equal parts called Degrees ; each degree into 60 equal...and each minute into 60 equal parts called Seconds,** &c. This method appeared to the Greek Geometers to afford some facilities for calculations, in consequence... | |
| Mensuration - 1820 - 312 pages
...the arch GH is the measure of the angle ABC. 1*. The circumference of every circle is supposed to be **divided into 360 equal parts, called degrees ; each...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 the angles.... | |
| Thomas Simpson - Algebra - 1821 - 408 pages
...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 second minutes, <Jc. Any part of the periphery is called an arch, and is measured by the number... | |
| Bewick Bridge - Algebra - 1821 - 227 pages
...exhibiting arithmetically the magnitude of angles, the whole circumference of the 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; &c. &c. And since arcs are the measures of angles,... | |
| |