Books Books 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, etc. Text-book of Arithmetic: For the Use of Teachers : Including All the ... - Page 167
by John Hunter - 1852 - 168 pages ## Mathematics: Compiled from the Best Authors and Intended to be the ..., Volume 1

Mathematics - 1801 - 426 pages
...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... ## A System of Geometry and Trigonometry: Together with a Treatise on Surveying ...

Abel Flint - Geometry - 1804 - 216 pages
...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... ## The shipwright's vade-mecum [by D. Steel].

David Steel - 1805 - 390 pages
...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... ## A Treatise of Practical Surveying: Which is Demonstrated from Its First ...

Robert Gibson - Surveying - 1806 - 452 pages
...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... ## An Introduction to the Theory and Practice of Plane and Spherical ...

Thomas Keith - Navigation - 1810 - 482 pages
...thus the arc *c is the measure of the angle aBC and the arc DE is the measure of the angle ABC. (H) The circumference of every circle is supposed to be divided into 360 equal parts called degrees, each degree into 60 equal parts called minutes, each minute into 60 equal... ## The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - Surveying - 1811 - 592 pages
...circumference into two equal parts, called semicircles ; and is double the radius, as AB or DE. fig. 8. m *!6. 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... ## A Course of Mathematics ...: Composed for the Use of the Royal Military ...

Charles Hutton - Mathematics - 1811
...and the other two on the two sides, that which stands at the angular point is read in the middle. 57. The circumference of every circle is supposed to be divided into 360 equnl parts, called Degrees : and each degree into 60 Minutes, each minute into 60 Seconds, and so... ## A Compendious and Complete System of Modern Geography: Or, A View of the ...

Jedidiah Morse - Geography - 1814 - 698 pages
...and the diameter is equal to two radii, or the longest straight line, that can be drawn in a circle. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 minutes ; each minute into 60 seconds. An arc of... ## The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - Electronic books - 1814 - 508 pages
...circumference into t wo equal parts, called semicircles; and isdoublethe radius, as AB or DE. fig. 8. 16. 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... 