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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.
The Theory and Practice of Surveying: Containing All the Instructions ... - Σελίδα 45
των Robert Gibson - 1821 - 544 σελίδες
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## A Treatise on Coal Mining: Prepared for Students of the International ...

...the unknown parts from the given parts is called the solution of the triangle. 741. In Trigonometry, the circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; every degree is subdivided into 60 equal parts, called minutes, and every minute is again divided...

## The Progressive Arithmetic: Part I-[III], Μέρος 3

Wilbur Fisk Nichols - 1903
...o'clock, in what time will the hands of a clock be at right angles to each other ? 1. For convenience, every circle is supposed to be divided into 360 equal parts called degrees. 2. By means of an instrument called a protractor any angle can be measured. 3. From cardboard cut out...

## The Elements of Geometry

Walter Nelson Bush, John Bernard Clarke - 1905 - 355 σελίδες
...measured by its intercepted arc. The circumference 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. For brevity, an angle measured by an arc of 1° is called an angle...

## ... New Complete Geography

Matthew Fontaine Maury - 1906 - 225 σελίδες
...equally ? which unequally ? Examine the edges of the pieces ; which are great circles ? Small circles ? Every circle is supposed to be divided into 360 equal parts called degrees, marked (°). Each degree is divided into tiO minutes, marked ('), and each minute into 60 seconds,...

## Mechanics and Hydrostatics for Beginners

Sidney Luxton Loney - 1907 - 290 σελίδες
...measurement on account of its size. We therefore subdivide a right angle into 90 equal parts called degrees, each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. The symbols used for a degree, a minute, and a second are 1°, 1', and...

## Complete Arithmetic, Parts 2 and #3

George E. Mercer - 1909 - 294 σελίδες
...B to C are arcs. The circumference of every circle is divided into 300 equal parts called degrees, each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. jJ5 of a circumference is called 1 degree of arc. J of a circumference,...

## Hawkins' Electrical Dictionary: A Cyclopedia of Words, Terms, Phrases and ...

Nehemiah Hawkins - 1910 - 537 σελίδες
...strain. Degeneration of Energy. — The deterioration or weakening of energy or force. Degrees. — The circumference of every circle is supposed to be divided into 360 equal parts, called degrees; thus, a degree is jJijth of the circumference of any circle. A degree is divided into 60 parts called...

## Mechanical Drawing

John Simpson Reid - 1919 - 232 σελίδες
...right line that touches a circle without cutting it. 50. Cotangent is tangent of complement of arc. 51. Circumference of every circle is supposed to be divided into 360 equal parts termed Degrees; each degree into 60 minutes and each minute in 60 seconds. 52. Complement of an angle...

## The Manufacture of Pulp and Paper: A Textbook of Modern Pulp and ..., Τόμος 1

...the angular measure of angles, and the table of angular measure was given in Arithmetic. The entire circle is supposed to be divided into 360 equal parts called degrees, the abbreviation for which is (°) ; each degree is then divided into 60 equal parts called minutes,...

## United States Army Training Manual

...earth's meridian into another position, under the influence of an artificial magnetic field. Degrees. — The circumference of every circle is supposed to be divided into 360 equal parts, called degrees; thus, a degree is onethree hundred and sixtieth of the circumference of any circle. A degree is divided...