| Abel Flint - 1804 - 168 páginas
...the Centre ; and it divides the Circle into two equal parts, 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 into 60 equal parts, called Minutes ; and each Minute into 60 equal parts, called... | |
| Robert Simson - 1804
...II. The 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
...centre to the circumference of a circle, is called a Radius. All the radii of the same circle are equal. **The circumference of every circle is supposed to be divided into 360** parts, called degrees; each degree into 60 equal parts, called minutei; and each minute into 60 equal... | |
| John Bonnycastle - 1806 - 419 páginas
...by an arc of a circle contained between its two legs, and having the angular point for its centre. **Every circle is supposed to be divided into 360 equal...; each degree into 60 equal parts, called minutes** ; each minute into 60 equal parts, called seconds ; &c. So that a semicircle, or half the circumference,... | |
| Robert Simson - 1806 - 518 páginas
...n. The 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,... | |
| Robert Gibson - 1806 - 452 páginas
...circumference into two equal parts called semicircles ; and is double 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 into 60 equal parts called minutes, and each minute into 60 equal parts called seconds,... | |
| John Hamilton Moore - 1807 - 328 páginas
...actually, or fuppofed to have, their circumference divided 11110360 equal parts, called degrees, and **each degree into 60 equal parts, called 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... | |
| Abel Flint - 1808 - 168 páginas
...Circumference of every Circle is supposcfl 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, 8tc. Note. Since all Circles are divided into the same number of Degrees,... | |
| 1808 - 272 páginas
...Ecliptic. This circle we suppose to be divided into 12 equal parts, called Signs ; each sign . into 30 **equal parts, called Degrees ; each degree into 60 equal parts called Minutes ; and** every minute into 60 equal parts, called Seconds; so that a second is the 60th part of a minute ; a... | |
| James Ferguson - 1809 - 533 páginas
...ecliptic. tic. This circle we suppose to be divided into 12 equal parts, called signs ; each sign into 30 **equal parts, called degrees; each degree into 60 equal parts, called minutes; and each minute into 60** into 60 equal parts, called seconds : so that a second Plate I. is the 60th part of a minute ; a minute... | |
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