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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 Minutes, each minute into 60 Seconds, and so on. "
A System of Geometry and Trigonometry: Together with a Treatise on Surveying ... - Page 6
by Abel Flint - 1804 - 168 pages
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The Common School Manual: A Regular and Connected Course of Elementary ...

Montgomery Robert Bartlett - Education - 1828 - 426 pages
...7. The right lines, A, C, I,, and B, C, E, divide the circle inUlour equal parts called quadrants. 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;...
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Sequel to The Analytical Reader: In which the Original Design is Extended ...

Samuel Putnam - Readers - 1828 - 314 pages
...greater part are poor and destitute. • ANGLE, a corner, formed usually by the meeting of two lines. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees. A semi-circle, of course, contains li!0 degress, and a quadrant, or quarter of a circle, contains SO...
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Elements of Geometry: Being Chiefly a Selection from Playfair's Geometry

John Playfair - Geometry - 1829 - 210 pages
...will be the proper measure of the angle BGC. Mathematicians suppose the circumference of every circle to be divided into 360 equal parts, called degrees,...equal parts, called minutes, and each minute into £0 equal parts, called seconds, &c. Hence a right angle, being measured by a quadrant contains 90...
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A London Encyclopaedia, Or Universal Dictionary of Science, Art ..., Volume 10

Thomas Curtis - Aeronautics - 1829 - 814 pages
...and the oilier two sides are called the LEGS, or sometimes the base and perpendicular. Fig. 10. 40. The circumference of every circle is supposed to be...equal parts, called DEGREES, and each degree into sixty MIMUTES, each minute into sixty SECOND, and so on. Hence a semicircle contains 180 degrees, and...
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The Practical Arithmetic: In which the Principles of Operating by Numbers ...

Arithmetic - 1829 - 196 pages
...MEASURING LAND. 386* TRIGONOMETRY is the art of measuring TRIANGLES. 38T* The PERIPHERY of every cirele is supposed to be divided into 360 equal parts, called DEGREES; and each degree into 60 other equal parts, called minutes, &c. * Tfiuse who would wish to pursue this study, cannot prrhaps...
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An Introduction to Mensuration and Practical Geometry

John Bonnycastle - Geometry - 1829 - 256 pages
...called the hypothenuse; and the other two sides are called legs. PRACTICAL GEOMETRY. 21 D / -E B *47. 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 so on. 48. The measure of any right-lined angle...
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A Concise System of Mathematics ...

Alexander Ingram - Mathematics - 1830 - 458 pages
...angle, the sector is called a Quadrant; and if half a right angle, it is called an Octant. NOTE 2. The circumference of every circle is supposed to be...divided into 360 equal parts, called degrees, and a degree into 60 equal parts, called minutes, and a minute into 60 seconds, and so on. NOTE 3. If two...
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A Dictionary of General Knowledge: Or, An Explanation of Words and Things ...

George Crabb - Industrial arts - 1830 - 438 pages
...centre to the circumference; the segment of a circle is a part cut off by a liue called the chord. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees, every degree into 60 parts called minutes, and every minute into 60 parts called seconds. Solids are...
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The British Celestial Atlas: Being a Complete Guide to the ..., Volume 1

G. Rubie - Astronomy - 1830 - 204 pages
...that which divides the Earth or Heavens into two unequal parts. Every Circle, whether great or small, is supposed to be divided into 360 equal parts, called degrees ; and each degree is subdivided into 60 equal parts, called minutes or miles; therefore, a Semicircle contains 180 degrees,...
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The Builder's Practical Guide: Containing a Complete Explanation of the ...

John Nicholson (Civil engineer) - Building - 1830 - 240 pages
...radii and an arc, as BIK (Fig. 19). 49. 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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