 | John Hamilton Moore - 1791 - 558 pages
...Circles, whether great or fmaíl, 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 - 558 pages
...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. Nate, Degrees are frequently marked °, and minutes '. Thus, 30 degrees, 14 minutes,... | |
 | William Taylor (teacher of the mathematics.) - 1800 - 558 pages
...Radius. 8. The circumference of every circle is divided into 360 equal parts Called Degrees; each degree into 60 equal parts, called Minutes; and each minute into 60 equal parts, called Seconds, &c. Any part of the the circumference is called an Arch. 10. A Seftor, is a figure comprehended under two... | |
 | Abel Flint - 1804 - 216 pages
...Circumference of every Circle is supposed to be^Hmded into 360 equal parts, called Degrees ; and each Degree into 60 equal parts, called Minutes ; and each Minute into 60 equal parts, called Seconds ; ititfl these into Thirds, Sec. 13. The Diameter of a Circle is a Right Line drawn from one side of... | |
 | Robert Simson - 1804 - 528 pages
...circumference of a 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, &c. And as many degrees, minutes, feconds, &c. as are contained in any arch, of fo many degrees,... | |
 | David Steel - 1805 - 392 pages
...circumference of every circle is supposed to be divided into 360 parts, called degrees; each degree into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds. A Quadrant of a circle will therefore contain 90 degrees, being a fourth part of 360. Equal angles... | |
 | Robert Simson - 1806 - 548 pages
...circumference of a circle is supposed to be divided info 360 equal parts called degrees, and each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds, i:>.. And as many degrees, minutes, seconds, &c. as are contained in any arch, of so many degrees,... | |
 | John Aikin - 1807 - 442 pages
...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 seconds. Degrees, minutes, and seconds are usually marked thus, 21°, 5' 6"; which are read 21 degrees 5 minutes... | |
 | John Hamilton Moore - 1807 - 614 pages
...fuppofed to luv«, their circumference divided into 360 equal 1 parts, called degrees, and each degree into 60 equal parts, called minutes, and each minute into 60 equal parts, called féconds, and fo on into thirds, fourths, &c. All angles are meafurcd by an arch of a circle, defcribed... | |
 | Abel Flint - 1808 - 190 pages
...Circumference of every Circle is supposcal 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 - r and these into Thirds, 8cc. Note. Since all Circles are divided into the same number of Degrees,... | |
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