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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. "
A Treatise on Practical Surveying: Which is Demonstrated from Its First ... - Página 95
por Robert Gibson - 1818 - 478 páginas
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The complete measurer: or, The whole art of measuring, containing the ...

Thomas Keith - 1817
...The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ;...and each minute into 60 equal parts, called seconds. The angles are measured by the number of degrees cut off from the circle, by the lines which form the...
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A Treatise on Surveying: Containing the Theory and Practice : to which is ...

John Gummere - 1817 - 206 páginas
...determined. 2. The periphery of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ;...and each minute into 60 equal parts, called seconds, See. I 3. The measure of- an angle is the arc of a circle, contained between the two lines that form...
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A System of Geometry and Trigonometry: Together with a Treatise on Surveying ...

Abel Flint - 1818 - 168 páginas
...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 divided into 360...and each Minute into 60 equal parts, called Seconds ; and these into Thirds, &c. Note. Since all Circles are divided into the same number of Degrees, a...
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Geometrical Problems Deducible from the First Six Books of Euclid, Arranged ...

Miles Bland - 1819 - 377 páginas
...unanimously agreed to divide the circumference of the circle into 36o equal parts called Degrees ; each degree into 60 equal parts called Minutes ; and...each minute into 60 equal parts called Seconds, &c. This method appeared to the Greek Geometers to afford some facilities for calculations, in consequence...
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Geometrical Problems Deducible from the First Six Books of Euclid, Arranged ...

Miles Bland - 1819 - 377 páginas
...unanimously agreed to divide the circumference of the circle into 36o equal parts called Degrees ; each degree into 60 equal parts called Minutes; and...each minute into 60 equal parts called Seconds, &c. This method appeared to the Greek Geometers to afford some facilities for calculations, in consequence...
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Hawney's Complete Measurer: Or, The Whole Art of Measuring. Being a Plain ...

William Hawney - 1820 - 312 páginas
...The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes :...and each minute into 60 equal parts, called seconds. Angles are measured by the number of degrees cut oft'from the circle, by the lines which form the angles....
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A Treatise of Algebra: Wherein the Principles are Demonstrated ... To which ...

Thomas Simpson - 1821 - 408 páginas
...the peripheries of circles, but also that certain right lines, in and about the circle, be supposed divided into some assigned number of equal parts....and each minute into 60 equal parts, called seconds, or second minutes, <Jc. Any part of the periphery is called an arch, and is measured by the number...
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The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - 1821 - 544 páginas
...equal parts, called semicircles; and is double theradius,as AB or DE. fig. 8. 16. The circumference of every circle is supposed to be divided into 360...60 equal parts called minutes, and each minute into 00 equal parts called seconds, and- these into thirds, fourths, &c. these parts being greater or less...
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The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ...

Euclid, Robert Simson - 1821 - 516 páginas
...arch AC is called the measure of the angle ABC. II. The circumference of a circle is supposed to lie divided into 360 equal parts called degrees; and each...each minute into 60 equal parts called seconds, &c. And as many degrees, minutes, seconds, &c. as are contained in any arch, of so many degrees, minutes,...
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A Treatise on Practical Gauging

Anthony Nesbit, W. Little - 1822
...The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes; and...each minute into 60 equal parts, called seconds, &c. 48. The arc of a quadrant contains 90 degrees, which is the measure of a right angle. 49. An ellipse...
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