| John Dougall - 1810 - 580 pages
...other four watches. In modern Europe the day is divided into 2* equal parts called hours, each hour **into 60 equal parts called minutes, and each minute into 60 equal parts called seconds.** It has been found by experiment at London, in a spot elevated 113 feet above the level of the sea,... | |
| Robert Gibson - Electronic books - 1811 - 508 pages
...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** caled seconds, and these into thirds, fourths, &c. these parts being greater or less as the radius... | |
| Caleb Alexander - Arithmetic - 1813 - 144 pages
...circumference of every circle, is supposed tobe divided into 360 equal parts, called degreeģ; and each degree, **into 60 equal parts, called minutes; and each minute, into 60 equal parts, called seconds,** and these into thirds, fourtUs, &c. 14. Parallel lines are equidistant from each other. 15 A figure,... | |
| Robert Gibson - Electronic books - 1814 - 508 pages
...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 tiiese into thirds, fourths, &c. these parts being greater or less as the radius is.17. A chord... | |
| Charles Butler - 1814
...usual to divide the whole circumference into 36O equal parts called degrees, to subdivide each degree **into 60 equal parts called minutes, and each minute into 60 equal parts called seconds,** &c. wherefore, if an angle at the centre be subtended by an arc which consists of suppose 30 degrees,... | |
| Euclides - 1816 - 528 pages
...circumference of a circle is supposed to be divided fnto 360 equal parts called degrees, and each degree **into 60 equal parts called minutes, and each minute into 60 equal parts called seconds,** &c. And as many degrees, minutes, seconds, &c. as are contained in any arc h, of so many degrees, minutes,... | |
| Thomas Keith - 1817
...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.** The angles are measured by the number of degrees cut off from the circle, by the lines which form the... | |
| John Gummere - Surveying - 1817 - 206 pages
...periphery 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,** 8cc. 3. The measure of an angle is the arc of a circle, con-, tuined between the two lines that form... | |
| Miles Bland - Euclid's Elements - 1819 - 377 pages
...agreed to divide the circumference of the circle into 36o equal parts called Degrees ; each degree **into 60 equal parts called Minutes ; and each minute into 60 equal parts called Seconds,** &c. This method appeared to the Greek Geometers to afford some facilities for calculations, in consequence... | |
| Miles Bland - Euclid's Elements - 1819 - 377 pages
...agreed to divide the circumference of the circle into 36o equal parts called Degrees ; each degree **into 60 equal parts called Minutes; and each minute into 60 equal parts called Seconds,** &c. This method appeared to the Greek Geometers to afford some facilities for calculations, in consequence... | |
| |