 | William Hawney - 1820 - 336 sider
...the arch GH is the measure of the angle ABC. 1*. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each...and each minute into 60 equal parts, called seconds. Angles are measured by the number of degrees cut oft'from the circle, by the lines which form the angles.... | |
 | Thomas Simpson - 1821 - 426 sider
...The periphery 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, or second minutes, <Jc. Any part of the periphery is called an arch, and is measured by the number... | |
 | William Jillard Hort - 1822 - 308 sider
...is the measure of the angle contained by the lines CA and CH. 2. If the circumference of a circle be divided into 360 equal parts called degrees, each...and each minute into 60 equal parts called seconds ; and so on ; then, as many degrees, minutes, and seconds, &c. as are in any arch ; so many degrees,... | |
 | Anthony Nesbit, W. Little - 1822 - 916 sider
...of a circle bounded by an arc sad two radii. 47. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each...and each minute into 60 equal parts, called seconds, &c. 48. The arc of a quadrant contains 90 degrees, which is the measure of a right angle. 49. An ellipse... | |
 | Rev. John Allen - 1822 - 508 sider
...called acute.* * Mathematicians have supposed the whole circumference of a circle to be divided in 360 equal parts, called degrees, each degree into...and each minute into 60 equal parts, called seconds, Stc. and a circle being described from the vertex of an angle, as a centre, an angle is said to be... | |
 | Anthony Nesbit - 1824 - 476 sider
...of a circle bounded by an arc and two radii. 47. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each...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... | |
 | George G. Carey - 1825 - 274 sider
...the plane of the circle. 8. Degrees, fyc. — All circles, whether great or small, are supposed to be divided into 360 equal parts, called degrees; each...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... | |
 | 1825 - 590 sider
...circumference of all circles, whether small or great, is supposed to be divided into 360 equal parts, which are called degrees ; each degree into 60 equal parts called...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... | |
 | Abel Flint - 1825 - 252 sider
...Circumference of every Circle is sipposed to be divided into 360 equal part?, 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. JVote. Since all Circles are divided into the same number ot Degrees,... | |
 | Nathaniel Bowditch - 1826 - 732 sider
...or small, are supposed to have their circumference 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 so on into thirds, fourths,* be. and an arch is said to be. of as many degrees as it contains parts... | |
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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, etc. 
