Books Books ... 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 example, ten degrees, eighteen minutes, and... The Geometrician: Containing Essays on Plane Geometry, and Trigonometry ... - Page 60
by Benjamin Donne - 1775 - 159 pages ## A NEW SYSTEM OF ARITHMETIC

CHARLES G. BURNHAM - 1857
...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, etc. Hence a semicircle contains 180 degrees, and a quadrant 90 degrees. 15.... ## A New System of Arithmetic, on an Improved Plan, Embracing the Rules of ...

Charles Guilford Burnham - 1857
...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, etc. Hence a semicircle contains 180 degrees, and a quadrant 90 degrees. 15.... ## The Common-school Arithmetic: a Practical Treatise on the Science of Numbers

Dana Pond Colburn - 1858 - 276 pages
...circle, 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 of the... ## 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 of the circle.... ## Arithmetic and Its Applications: Designed as a Text Book for Common Schools ...

Dana Pond Colburn - 1860
...be 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... ## A Manual of the Protracting Trigonometer: With Its Application to ...

Josiah Lyman - Electronic book - 1862 - 77 pages
...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 angle ; and the... ## Elements of Plane Trigonometry: And Their Application to the Measurement of ...

...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 ( "). 34. The RADIUS of a circle is a line drawn from the centre to the circumference ; as C B. All... ## Elements of Geometry and Trigonometry

C. Davies - 1867
...the circle is 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 secondsTRIGONOMETRY Definitionsby the characters ° ' "- For example, ten degrees, eighteen minutes,... ## Smith's Illustrated Astronomy: Designed for the Use of the Public Or Common ...

Asa Smith - 1868 - 79 pages
...circumference of every circle ¡в supposed to be divided into and equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds. Circumpolar Start.— Those stars which revolve around the pole without passing below the horizon.... 