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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 National Arithmetic, on the Inductive System: Combining the Analytic and ... - Σελίδα 252
των Benjamin Greenleaf - 1844 - 324 σελίδες
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The Youth's Assistant in Theorhetic [sic] and Practical Arithmetic: Designed ...

Zadock Thompson - 1832 - 182 σελίδες
...in Vermont, contains 38 quarts, or 2552.6 cubic inches. * Every circle, without regard to its size, is supposed to be divided into 360 equal parts, called degrees, and these again to be subdivided into minutes and seconds; so that the absolute quantity expressed by any...

A System of Geometry and Trigonometry: With a Treatise on Surveying; in ...

Abel Flint - 1835 - 368 σελίδες
...centre ; and it divides the circle into two equal parts, called semicircles ; as AB or DE. Fig. 5. 14. The circumference of every circle is supposed to be...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...

A System of Geometry and Trigonometry: With a Treatise on Surveying; in ...

Abel Flint - 1835 - 366 σελίδες
...Tivides the circle into two equal parts, calle. .emicircles ; as AB or DE. Fig. 5. 14. The , jmference of every circle is supposed to be divided into 360...equal parts, called degrees ; and each degree into 60 equal parts, called minute*; and each minute into 60 equal parts, called seconds; and these into thirds,...

The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ...

Euclid - 1835 - 540 σελίδες
...and BC, in A and C ; the arch AC is called the measure of the angle ABC. II. The circumference of a 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, &c. A degree is marked...

A New System of Practical Astronomy: Made Plain and Easy to Those who Have ...

Thomas Spofford - 1835 - 84 σελίδες
...every part of the circumference ia equally distant from a point within the circle, called the centre. The circumference of every circle is supposed to be 'divided into 360 equal parts called degrees ; each degree into 60 equal parls called minutes, and each minute into 60 equal parts called seconds....

Encyclopædia Americana: A Popular Dictionary of Arts, Sciences ..., Τόμος 5

Francis Lieber, Edward Wigglesworth - 1835 - 630 σελίδες
...poles. The brazen meridian is the circle in which the artificial globe turns, divided into 360 degrees. Every circle is supposed to be divided into 360 equal parts, called degrees, each degree into CO equal ports, called minutes, each minute into 60 equal parts, called seconds, Sic....

The Engineer's and Mechanic's Encyclopædia: Comprehending ..., Τόμος 1

Luke Hebert - 1835 - 816 σελίδες
...between two radii and an arc, as oc 6, Fig. T. The circumference of every circle, whether great or small, is supposed to be divided into 360 equal parts, called degrees ; and every degree into 60 parts, called minutes ; and every minute into 60 seconds. To measure the inclination...

The Mechanic's Calculator; Comprehending Principles, Rules, and Tables in ...

William Grier - 1836 - 380 σελίδες
...the two sides, 1! A *' that which stands at the angular point is rend in the middle. Thus DAE. 57. The circumference of every circle is supposed to be...60 seconds, and so on. Hence a semicircle contains I8O degrees, and a quadrant 90 degrees. 58. The Measure of an angle, is an arc of any circle contained...

The Element of Geometry

John Playfair - 1836 - 148 σελίδες
...C ; the arc AC may be called the measure of the angle ABC, II. The circumference of a circle may be 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, &c. And as many degrees,...

The Engineer's and Mechanic's Encyclopædia, Τόμος 1

Luke Hebert - 1836 - 814 σελίδες
...two radii and an arc, as a с b, Fig. T. The circumference of every circle, whether great or small, is supposed to be divided into 360 equal parts, called degrees; and every degree into 60 parts, called minutes ; and every minute into 60 seconds. To measure the inclination...




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