| Nathaniel Dwight - 1816 - 213 páginas
...parts ; and small circles, which divide it into unequal parts. Q. What are the degrees of a circle ? A. **The circumference of every circle is supposed to be...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 - 1816 - 528 páginas
...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 - 1816 - 244 páginas
...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.... | |
| John Bonnycastle - 1816 - 428 páginas
...and the equator, we are enabled to judge of the situation of the place with respect to its latitude. **Every circle is supposed to be divided into 360 equal parts, called degrees,** and every degree into sixty equal parts, called minutes; so that, from these considerations, you will... | |
| Thomas Keith - 1817
...the arc DE is the measure of the angle » BE, and the arc G n is the measure of the angle ABC. 14. **The circumference of every circle is supposed to be...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 form the... | |
| John Gummere - 1817 - 206 páginas
...of a plane triangle, except the three angles, are given, the others are determined. 2. The periphery **of every circle is supposed to be divided into 360...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 that form... | |
| Nathaniel Dwight - 1817 - 216 páginas
...Circles, which divide it into Unequal parts. Q. What are the Degrees of a Circle ?. A. The circumferer.ee **of every circle is supposed to be divided into 360...parts called minutes ;• and each minute into 60** seconds. Q. What is the EQUATOR ? A. It is the circumference of a great circle passing from E. to W.... | |
| Abel Flint - 1818 - 168 páginas
...Centre ; and it divides 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... | |
| Charles Hutton - 1818
...the middle. Thus the angle contained by the lines BA and 3D is called the angle BAC BAD or DAB. 67. **The circumference of every circle is supposed to be divided into 360 equal parts, called Degrees** : and each degree into 60 Minutes, each minute into 60 Seconds, and so on. Hence a semicircle contains... | |
| Robert Gibson - 1818 - 478 páginas
...about circles, be supposed to be 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... | |
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