| Robert Simson - 1775 - 520 páginas
...circumference of a circle is fuppofed to be divided into H h ' 360 360 equal parts called degrees, and **each degree into 60 equal parts called minutes, and each minute into** 6e equal parts called feconds, &c. And as many degrees, minutes, feconds, &c as are contained in any... | |
| Euclid - 1781 - 520 páginas
...between the tan.ngles HKB, ABC will \.E arc right ; therefore rill• 360 equal parts called degrees, and **each degree into 60 equal parts called minutes, and each minute into 60 equal parts called** feconds, &c- And as many degrees, minutes, feconds, &c. as are contained in any arch, of fo many degref.s... | |
| John Hamilton Moore - 1791 - 296 páginas
...Circle. All Circles, whether great or fmall, are 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,** &c. A Semicircle is 180 Degrees, and a Quadrant contains 90 Degrees. A Right Angle contains 90 Degrees... | |
| John McGregor (teacher of mathematics.) - 1792 - 431 páginas
...trigonometry. The circumference of any circle, is divided into 360 equal parts, called degrees, and **each degree into 60 equal parts, called minutes, and each minute into 60 equal parts, called** féconds, and fo on. JVi/f, Degrees are frequently marked °, and minutes '. Thus, 30 degrees, 14 minutes,... | |
| Robert Gibson - 1795 - 319 páginas
...The Circumference of every Circle is fuppofed 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,** and thefe into Thirds, Fourths, &c. thefe Parts being greater or lefs as the Radius is. 19. A Chord... | |
| Benjamin Donne - 1796
...calculating the proportion which angles bear to each other, fuppofe the circumference of every circle **to be divided into 360 equal parts, called Degrees ; each degree into 60 equal parts, called minutes** ; each minute into 60 equal parts named feconds, &c. Ar. B. Sometimes the circumference of a circle... | |
| Thomas Simpson - 1799 - 79 páginas
...The periphery of every circle is fuppofed 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** feconds, or fecond minutes, &c. ' B a 3- Any HK/ 3. Any part AB of the periphery of the circle is called... | |
| William Taylor - 1800 - 519 páginas
...a' femi-eircle • half the diameter is called the Radius. 8. The circumference of every circle is **divided into 360 equal parts called Degrees ; each...and each minute into 60 equal parts, called Seconds,** &c. Any part of the the circumference is called an Arch. 9. The Chord of an arch, is a right line joining... | |
| 1801 - 426 páginas
...the two sides, that, which stands at the angular point, is rend in the middle. C 56. The 39° 5 6. **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 do seconds, and so on. Hence a semicircle contains... | |
| Alexander Adam - 1802 - 858 páginas
...radii of the fame circle are always equal to one another. The circumference of every circle is fuppofed **to be divided into 360 equal parts, called degrees ; each degree into 60** mi* ñutes \ each minute into 60 feccnds ; and thefe into thirds, fourths, &c. greater or ¡efs according... | |
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