| 1814 - 227 sider
...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,...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,... | |
| Nathaniel Dwight - 1816 - 213 sider
...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... | |
| Charles Hutton - 1818
...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 180 degrees, and a quadrant... | |
| Robert Gibson - 1821 - 544 sider
...semicircles; and is double theradius,as AB or DE. fig. 8. 16. The circumference of every circle is supposed **to be divided into 360 equal parts called degrees,...60 equal parts called minutes, and each minute into** 00 equal parts called seconds, and- these into thirds, fourths, &c. these parts being greater or less... | |
| Rev. John Allen - 1822 - 494 sider
...have supposed the whole circumference of a circle to be divided in 360 equal parts, called degrees, **each degree into 60 equal parts, called minutes and each minute into 60 equal parts,** cal:ed seconds, &c. and a circle being described iron) the vertex of an angle, as a centre, an angle... | |
| Joseph Emerson Worcester - 1822 - 322 sider
...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** 00 equal parts, called seconds. They are marked thus, 23° 28' 16" ; i- e. 33 degrees, 28 minute!",... | |
| Samuel Adams (servant.), Sarah Adams - 1826
...is J3. ,\ Gross is 12 Dozen, or 144 A Pace is 3 Feet or a Yard. Mathematicians conceive every Circle **to be divided into 360 equal Parts, called Degrees, and each Degree into 60 equal parts, called** Seconds, and each Second subdivided into 60 smaller parts, called thirds, and so on. The Diameter of... | |
| John Playfair - 1829 - 186 sider
...will be the proper measure of the angle BGC. Mathematicians suppose the circumference of every circle **to be divided into 360 equal parts, called degrees,...equal parts, called minutes, and each minute into** £0 equal parts, called seconds, &c. Hence a right angle, being measured by a quadrant contains 90... | |
| 1829 - 180 sider
...386* TRIGONOMETRY is the art of measuring TRIANGLES. 38T* The PERIPHERY of every cirele is supposed **to be divided into 360 equal parts, called DEGREES; and each degree into 60** other equal parts, called minutes, &c. * Tfiuse who would wish to pursue this study, cannot prrhaps... | |
| Thomas Curtis - 1829
...or sometimes the base and perpendicular. Fig. 10. 40. The circumference of every circle is supposed **to be divided into 360 equal parts, called DEGREES, and each degree into** sixty MIMUTES, each minute into sixty SECOND, and so on. Hence a semicircle contains 180 degrees, and... | |
| |