Books Books 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 ## 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.... ## 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.... ## 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... ## 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... ## 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... ## 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.... ## 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... ## 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... ## 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... 