 | Euclid - 1781 - 552 sider
...co-fucant of the angle rtionai between the tan.ngles HKB, ABC will \.E arc right ; therefore rill• 360 equal parts called degrees, and each degree into...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 - 578 sider
...the ßooth Part of the Circumference of any Circle. All Circles, whether great or fmall, are divided into 360 equal Parts, called Degrees ; and each Degree...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 - 532 sider
...divided into right-angled and oblique-angled trigonometry. The circumference of any circle, is divided into 360 equal parts, called degrees, and each degree...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 - 384 sider
...double the Radius, as AB cr DE. Fig. 8. 1 8. The Circumference of every Circle is fuppofed to be Divided into 360 equal Parts called Degrees, and each Degree...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... | |
 | William Taylor (teacher of the mathematics.) - 1800 - 556 sider
...called the 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. 9. The Chord of an arch, is a right line joining... | |
 | Abel Flint - 1804 - 226 sider
...called Semicircles ; as AB or DE. 14. The. Circumference of every Circle is supposed to be Divided into 360 equal parts, called Degrees ; and each Degree...and each Minute into 60 equal parts, called Seconds ; jktl these into Thirds, &c. Ifote. .-Since all Circles are divided into the same number of Degrees,... | |
 | Robert Simson - 1804 - 530 sider
...is called the meafure of the angle ABC. II. The circumference of a circle is fuppofed to be divided into 360 equal parts called degrees, and each degree...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,... | |
 | Robert Gibson - 1806 - 486 sider
...the radius, as AB or DE. fig. 8. • 18. The circumference of every circle is supposed to be divided into 360 equal parts called degrees, and each degree...and each minute into 60 equal parts called seconds, and these into thirds, fourths, &c. these parts being greater or less as the radius is. 19. A chord... | |
 | Robert Simson - 1806 - 546 sider
...called the measure of th« angle ABC. n. The circumference of a circle is supposed to be divided info 360 equal parts called degrees, and each degree into...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 Hamilton Moore - 1807 - 586 sider
...circles, whether great or fmall, are actually, or fuppofed to have, their circumference divided 11110360 equal parts, called degrees, and each degree into...minutes, and each minute into 60 equal parts, called féconds, and fu on into thirds, fourths, &c. All angles are msafurcd by an arch of a circle, defcribed... | |
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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 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c. 
