 | Anthony Nesbit - Surveying - 1824 - 476 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 60 equal parts, called seconds. 48. The arc of a quadrant contains 90 degrees, which is the measure of a right angle. 49. Ap ellipse... | |
 | Industrial arts - 1825 - 590 pages
...whether small or great, is supposed to be divided into 360 equal parts, which are called degrees ; each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds, in the same manner as a yard is divided into 3 equal parts called feet, a foot into 12 equal parts... | |
 | George G. Carey - Astronomy - 1825 - 274 pages
...All circles, whether great or small, are 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.f 9. An Angle is the inclination of two lines which meet in a point, and is always some part of... | |
 | Nathaniel Bowditch - Nautical astronomy - 1826 - 732 pages
...circles, whether great or small, are supposed to have their circumference divided into 360 equal parts, called degrees, and each degree into 60 equal parts,...each minute into 60 equal parts, called seconds, and so on into thirds, fourths,* be. and an arch is said to be. of as many degrees as it contains parts... | |
 | Nathaniel Bowditch - Nautical astronomy - 1826 - 764 pages
...small, are supposed to have th cumference divided into 360 equal parts, called degrees, and each deçr 60 equal parts, called minutes ; and each minute into 60 equal parts. seconds, and so on into thirds, fourths,* be. and an arch is said to bi many degrees as it contains... | |
 | Robert Simson - Trigonometry - 1827 - 546 pages
...of the angle ABC. II. The circumference of a circle is supposed to be divided into 360 equal parts called degrees, and each degree into 60 equal parts...and each minute into 60 equal parts called seconds, &c. And as many degrees, minutes, seconds, &c. as are contained in any arch, of so many degrees, minutes,... | |
 | James Thomson - 1827 - 1012 pages
...circle be divided into 360 equal parts, each of them is called a degree. Each degree is subdivided into 60 equal parts, called minutes; and each minute into 60 equal parts, called * Geography is a description of the earth ; and is distinguished by different names, according to tha... | |
 | Montgomery Robert Bartlett - Education - 1828 - 426 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...parts, called seconds; and these into thirds, &c. Now, as all circles are not of the same magnitude, and as they are all divided into the same number... | |
 | Adrien Marie Legendre - Geometry - 1828 - 346 pages
...calculations, the circumference of the circle is conceived 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 semicircumference, or the measure of two right angles, contains 180 degrees; the quarter of the... | |
 | John Playfair - Geometry - 1829 - 210 pages
...angle BGC. Mathematicians suppose the circumference of every circle to be divided into 360 equal parts, called degrees, and each degree into 60 equal parts, called minutes, and each minute into £0 equal parts, called seconds, &c. Hence a right angle, being measured by a quadrant contains 90... | |
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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. 
