| William Benjamin Smith - Geometry, Modern - 1892 - 314 pages
...straight angle? In a right angle ? HISTORICAL NOTE. — For purposes of computation the round angle is **divided into 360 equal parts called degrees, each degree into 60 equal** minutes (partes minutes primae), each minute into 60 equal seconds (partes minutse secundci), denoted... | |
| William Benjamin Smith - Geometry, Modern - 1893 - 330 pages
...straight angle? In a right angle ? HISTORICAL NOTE. — For purposes of computation the round angle is **divided into 360 equal parts called degrees, each degree into 60 equal** minutes (partes minutte primse), each minute into 60 equal seconds (partes minutse secundtz), denoted... | |
| Albert Newton Raub - Arithmetic - 1894 - 200 pages
...the centre and limited by the circumference, as AD, is called a Diameter. 129. Every circumference is **divided into 360 equal parts, called degrees; each degree into 60 equal parts, called minutes** ; and each minute into 60 equal parts, called seconds. TABLE. 60 seconds (") =1 minute, (' ). 60 minutes... | |
| Edward Brooks - Arithmetic - 1895 - 424 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...into 60 equal parts, called minutes; each minute into** 60 equal parts, called seconds. 242. Any angle having its vertex at the centre is measured by the arc... | |
| Edward Brooks - Arithmetic - 1895 - 248 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...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 the arc BD included... | |
| George Washington Hull - Arithmetic - 1895 - 404 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...60 equal parts, called minutes ; each minute into** 60 equal parts, called seconds. TABLE. 60 seconds (") = 1 minute, '. 60 minutes = 1 degree, °. 360... | |
| George D. Pettee - Geometry, Plane - 1896 - 272 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 degree into 60 equal parts called minutes,** and each minute into CO equal parts called seconds. Since central angles vary as their intercepted... | |
| Edward Cornelius Toune, Graeme Mercer Adam - 1897 - 692 pages
...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... | |
| Self-culture - 1897 - 592 pages
...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... | |
| International Correspondence Schools - Mining engineering - 1900 - 728 pages
...circumference being at the vertex of the angle. For measuring angles, the circumference is divided into :i60 **equal parts. called degrees; each degree into 60 equal parts called minutes.** A quadrant is one-fourth the circumference of a circle, or 90°. The complement of an arc is 90° minus... | |
| |