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" 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. "
A Treatise on Surveying: Containing the Theory and Practice : to which is ... - Page 33
by John Gummere - 1846 - 266 pages
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A Treatise of Algebra: Wherein the Principles are Demonstrated ... To which ...

Thomas Simpson - Algebra - 1821 - 408 pages
...right lines, in and about the circle, be supposed divided into some assigned number of equal parts. 2. The periphery 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...
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The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - Surveying - 1821 - 544 pages
...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 00 equal parts called seconds, and- these into thirds, fourths, &c. these parts being greater or less...
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A Treatise on Practical Gauging

Anthony Nesbit, W. Little - Measurement - 1822
...ADC. " *fi. A sector is any part of a circle bounded by an arc sad two radii. 47. The circumference of every circle is supposed to be divided into 360...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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Elements of Geography, Ancient and Modern: With an Atlas

Joseph Emerson Worcester - Atlases - 1822 - 322 pages
...colurvs. equal parts. These are four, the two tropics, and (he two polar circles. The circumference of every circle is supposed to be divided into 360...equal parts, called minutes ; and each minute into 00 equal parts, called seconds. They are marked thus, 23 28' 16" ; i- e. 33 degrees, 28 minute!",...
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Euclid's Elements of Geometry: The Six First Books. To which are Added ...

Euclid, Rev. John Allen - Astronomy - 1822 - 494 pages
...called acute.* * Mathematicians have supposed the whole circumference of a circle to be divided in 360 equal parts, called degrees, each degree into...and each minute into 60 equal parts, called seconds, Stc. and a circle being described from the vertex of an angle, as a centre, an angle is said to be...
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Euclid's Elements of Geometry: The Six First Books. To which are Added ...

Euclid, Rev. John Allen - Astronomy - 1822 - 494 pages
...tailed acute.* * Mathematicians have supposed the whole circumference of a circle to be divided in 360 equal parts, called degrees, each degree into...called minutes and each minute into 60 equal parts, cal:ed seconds, &c. and a circle being described iron) the vertex of an angle, as a centre, an angle...
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A New System of Modern Geography, Or, A View of the Present State of the ...

Sidney Edwards Morse - Atlases - 1822 - 676 pages
...straight line drawn through the centre from one side of the circumference to the other. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 minutes ; each minute into GO seconds. An arc of a circle is part of its circumference. All angles...
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A New System of Modern Geography, Or, A View of the Present State of the World

Sidney Edwards Morse - Geography - 1822 - 676 pages
...straight line drawn through the centre from one side of the circumference to the other. 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 a circle is part of its circumference. All angles...
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A general view of the sciences and arts, Volume 1

William Jillard Hort - 1822
...and in more modern times, Napier, the inventor of logarithms, and Briggs. In plane trigonometry, the circle is supposed to be divided into 360 equal parts, called degrees ; every degree into 60 equal parts, called minutes ; every minute into 60 equal parts, called seconds...
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A treatise of practical mensuration

Anthony Nesbit - Measurement - 1824 - 434 pages
...as ADC. 46. A sector is any part of a circle bounded by an arc and two radii. 47. The circumference of every circle is supposed to be divided into 360...and each minute into 60 equal parts, called seconds. 48. The arc of a quadrant contains 90 degrees, which is the measure of a right angle. 49. Ap ellipse...
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