 | Jedidiah Morse - 1814 - 696 σελίδες
...and the diameter is equal to two radii, or the longest straight line, that can be drawn in a circle. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 minutes ; each minute into 60 seconds. An arc of a circle is the measure of an... | |
 | 1814 - 402 σελίδες
...DE. and it is a chord to 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... | |
 | Abner Alden - 1814 - 222 σελίδες
...earth ? A. By supposing 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 into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds. Q. What is a great... | |
 | John Gummere - 1814 - 398 σελίδες
...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 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minnte into 60 equal parts, called seconds,... | |
 | Nathaniel Dwight - 1816 - 220 σελίδες
...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 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... | |
 | John Bonnycastle - 1816 - 490 σελίδες
...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 readily... | |
 | 1816 - 764 σελίδες
...The circumference of every circle is fuppofefi to be divided into 360 -equal parts called DECKEI-S, and each degree into 60 MINUTES, each minute into 60 SECONDS, and fo on. Hence a femicircle contains 180 degres, and a quadrant 90 degrees. 41. fhf MEASURE of a RECTILINEAL... | |
 | Thomas Keith - 1817 - 306 σελίδες
...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 divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.... | |
 | Nathaniel Dwight - 1817 - 228 σελίδες
...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 equal parts called degrees ; each degree into. 60 equal parts called minutes ;• and each minute into 60 seconds. Q. What is... | |
 | Charles Hutton - 1818 - 646 σελίδες
...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...Minutes, each minute into 60 Seconds, and so on. Hence a semicircle contains 180 degrees, and a quadrant 90 degrees. 58. The Measure of an angle, is an arc... | |
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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. 
