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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 First Six Books: Together with the Eleventh and Twelfth - Page 483
by Euclid - 1781 - 520 pages
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A New System of Arithmetic, on an Improved Plan, Embracing the Rules of ...

Charles Guilford Burnham - 1857
...equal parts called semicircles. 14. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree...minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, etc. Hence a semicircle contains 180 degrees, and a quadrant 90 degrees....
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A NEW SYSTEM OF ARITHMETIC

CHARLES G. BURNHAM - 1857
...equal parts called semicircles. 14. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree...minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, etc. Hence a semicircle contains 180 degrees, and a quadrant 90 degrees....
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Mathematical Dictionary and Cyclopedia of Mathematical Science: Comprising ...

Charles Davies, William Guy Peck - Handbooks, vade-mecums, etc - 1857 - 592 pages
...somewhat longer than the sidereal. Each day is divided into 24 equal parts, called hours ; each hour into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and, according to the kind of day which is thus subdivided, we have mean solar, or sidereal...
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Elements of Geometry and Trigonometry from the Works of A. M. Legendre ...

Adrien Marie Legendre, Charles Davies - Geometry - 1857 - 432 pages
...supposed to be divided into 360 equal parts, called degrees ; each degree is supposed to be divided into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds. Degrees, minutes, and seconds, are designated respectively, by the characters ' ". For...
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The Common-school Arithmetic: a Practical Treatise on the Science of Numbers

Dana Pond Colburn - 1858 - 276 pages
...whether large or small, is supposed to contain 360 equal parts, called DEGKEES ; each degree is divided into 60 equal parts, called MINUTES ; and each minute into 60 equal parts, called SECONDS. NOTE. — Tho length of a degree, as well as that of its subdivisions, varies with the size...
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A New System of Arithmetic, on an Improved Plan ...

Charles Guilford Burnham - 1859
...parts called semicircles. 14. The circumference of every circle is supposed to be divided into 860 equal parts, called degrees ; and each degree into...minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, eta Hence a semicircle contains 180 degrees, and a quadrant 90 degrees....
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A Treatise on Practical Mensuration

Anthony Nesbit - Measurement - 1859 - 450 pages
...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 GO equal parts, called seconds. 48. The arc of a quadrant contains 90 degrees, which is the measure...
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The Common-school Arithmetic: A Practical Treatise on the Science of Numbers

Dana Pond Colburn - Arithmetic - 1859 - 270 pages
...large or small, is suppose^ to contain 360 equal parts, called DEGREES ; each degree is divided into G0 equal parts, called MINUTES; and each minute into 60 equal parts, called SECONDS. NOTE.—Tho length of a degree, as well as that of its subdivision?, varies with the size...
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Arithmetic and Its Applications: Designed as a Text Book for Common Schools ...

Dana Pond Colburn - 1860
...l.irge or small, is supposed to be divided into 3t10 equal p:\rts called degrees. Each degree is divided into 60 equal parts, called minutes, and each minute into 60 equal parts, called ccconds. (g.) A degree is to be regarded simply as the S60th part of the circumference of the circle...
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A Manual of the Protracting Trigonometer: With Its Application to ...

Josiah Lyman - Electronic book - 1862 - 77 pages
...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. 9. The Measure of an angle is the arc intercepted between the two lines that form the...
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