Books Books 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 ## The Normal Standard Arithmetic: By Analysis and Induction, Designed for ...

Edward Brooks - Arithmetic - 1895 - 415 pages
...the circumference is called a quadrant. 241. For the purpose of measuring angles the circumference is divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes; each minute into 60 equal parts, called seconds. 242. Any angle having its vertex at the centre is... ## The Normal Rudiments of Arithmetic: Oral and Written, Designed for Primary ...

Edward Brooks - Arithmetic - 1895 - 239 pages
...from a point within called the centre. 3. For the purpose of measuring angles the circumference is divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes; each minute into 60 equal parts, called seconds. 4. Any angle at the centre, as BCD, is measured by... ## A Complete Arithmetic: With Oral and Written Exercises

George Washington Hull - Arithmetic - 1895 - 352 pages
...quadrant. An Arc is any part of a circumference. For convenience of measuring the circumference is divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; each minute into 60 equal parts, called seconds. TABLE. 60 seconds (") = 1 minute, '. 60 minutes... ## The American House Carpenter: A Treatise on the Art of Building : Comprising ...

Robert Griffith Hatfield - Architecture - 1895 - 685 pages
...angle)— then each of the two angles is called a right angle. 327. — Definition. — The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; hence a semicircle contains 180 degrees, a quadrant 90, etc. CBD FIG. 250. 328. — Definition. —... ## Plane Geometry

George D. Pettee - Geometry, Plane - 1896 - 253 pages
....-.theirlimits=J 175. Sen. Both the circumference of a circle and the angular space about the centre are divided into 360 equal parts called degrees, each...60 equal parts called minutes, and each minute into CO equal parts called seconds. Since central angles vary as their intercepted arcs, any central angle... ## The Elements of Mechanical Engineering, Volume 1

...from the given parts is called the solution of the triangle. 741. In Trigonometry, the circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; every degree is subdivided into GO equal parts, called minutes, and every minute is again divided... ## First Principles of Mechanical and Engineering Drawing

H. Holt-Butterfill - Mechanical drawing - 1897 - 211 pages
...one half of it a semi-circle. For the measurement of angles, arcs, chords, etc., the circumference of every circle is supposed to be divided into 360 equal parts called degrees, which are indicated when speaking of them by attaching a small circle to the right of the number stated... ## Self Culture

1897
...are, in fact, measured in this way, that is, on the circumference of a circle. A circle is conceived to be divided into 360 equal parts, called degrees ; each degree into 60 minutes ; each minute into 60 seconds. Thus, when you have swung this strip of paper one-twelfth of... ## Modern Culture

...are, in fact, measured in this way, that is, on the circumference of a circle. A circle is conceived to be divided into 360 equal parts, called degrees ; each degree into 60 minutes ; each minute into 60 seconds. Thus, when you have swung this strip of paper one-twelfth of... 