| Archibald Patoun - Navigation - 1734 - 414 pages
...of every Circle is fuppofed to be divided into 360 equal Parts, called Degrees ; and each Degree is **divided into 60 equal Parts, called Minutes ; and each Minute into 60** e?ual Parts, called Seconds; and 'thefe into Thirds, 'ourtbs, &c, thefe Parts being greater or lefs... | |
| Philip Ronayne - Algebra - 1738 - 421 pages
...DEFINITIONS. i. A Circle is fuppos'd to be r\ divided into 360 equal Parts, called Degrees j and each Degree **into 60 equal Parts, called Minutes ; and each Minute into 60 equal Parts, called Seconds** 5 t£c. Any Portion \ of whofe Circumference is called an Arch, and is meafured by the Number of Degrees... | |
| John Ward - Mathematics - 1747 - 480 pages
...-tJL vidcd into DEFINITIONS. fuppos'd to be di-. 360 equal Parts, called Degrees ; and each Degree **into 60 equal Parts, called Minutes ; and each Minute into 60 equal Parts, called Seconds,** &V. Any Portion of whofe Circumference is called an Arch, and is meafured by the Number of Degrees... | |
| Thomas Simpson - Logarithms - 1748 - 77 pages
...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 Seconds,** or fecond Minutes, &c. B G 3. Any Part AB of H the Periphery of the Circle is called an Arch, and is... | |
| Benjamin Donne - Algebra - 1758 - 372 pages
...called a Day ; which Day they fubdivided into 24 equal Parts called Hours, and each of thefe again **into 60 equal Parts called Minutes, and each Minute into 60 equal Parts called Seconds,** &c. Further, the Time which is elapfed between the Inftant when the Sun is in the Equinox, or firlt... | |
| Joseph Fenn - Mathematics - 1769
...conceived to be divided into 360 equal parts, ivbicb are (ailed DEGREES ; and each of tbefe degrees **into 60 equal parts, called MINUTES ; and each minute into 60 equal parts, called SECONDS** 6fr. in con/equence of this bypotheßs, У the correfpondence eßabliflied between the arches, У the... | |
| Joseph Fenn - Mathematics - 1769
...to be divided into 360 equal parts, -which are callea DEGREES ¡ and each of tbefe degrees into ¿o **equal parts, called MINUTES ; and each minute into 60 equal parts, called SECONDS** &c. in confequence of ibis bypotheßs, У the correjpondence eßablijhed bet-ween the arches, У the... | |
| John Wright (mathematician.) - Perspective - 1772 - 251 pages
...ACBD, fig. 4. is fuppofed to be divided into 360 equal parts, called degrees; each degree ifr fuppofed **to be divided into 60 equal parts, called minutes ; and each minute into 60 equal parts, called** feconds, &c. 5. Any angle HRB at the centre of a circle, is faid to be an angle of as many degrees,... | |
| Benjamin Donne - Geometry, Plane - 1775 - 159 pages
...Degrees are a Semicircle, or 2 Rt. ¿.s, and 90 Degrees a Quadrant, or Rt L. j) each Degree is fuppofed **to be divided into 60 equal Parts, called Minutes,...and each Minute into 60 equal Parts, called Seconds,** &c. Hence it is plain, that in une' qual Circles, as well as in equal, equal Angles are fubtended by... | |
| Euclid - 1781 - 520 pages
...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... | |
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