| Rev. John Allen - 1822 - 494 páginas
...called acute.* * Mathematicians have supposed the whole circumference of a circle to be divided in **360 equal parts, called degrees, each degree into 60 equal parts, called minutes,** and each minute into 60 equal parts, called seconds, Stc. and a circle being described from the vertex... | |
| Anthony Nesbit - 1824 - 434 páginas
...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 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,... | |
| George G. Carey - 1825 - 166 páginas
...of the circle. 8. Degrees, fyc. — 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... | |
| Thomas Keith - 1826 - 442 páginas
...DE is the measure of the angle ABC. (H) The circumference of every circle is supposed to be divided **into 360 equal parts called degrees, each degree into 60 equal parts called minutes, each** minute into 60 equal parts called seconds. The angles are measured by the number of degrees cut from... | |
| Miles Bland - 1827 - 377 páginas
...angle (7.) Till lately. Geometers almost unanimously agreed to divide the circumference of the circle **into 360 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... | |
| Thomas Kerigan - 1828 - 664 páginas
...hemisphere, and the other, the southern hemisphere. — The equator, like all other great circles, is divided **into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes } each** minute into 60 equal parts, called seconds, and so on. The Meridian, of any place on the earth is a... | |
| Adrien Marie Legendre - 1828 - 316 páginas
...purposes of trigonometrical 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... | |
| Montgomery Robert Bartlett - 1828
...inUlour equal parts called quadrants. 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; and these into thirds, &c. Now, as all circles... | |
| John Bonnycastle - 1829 - 252 páginas
...legs. PRACTICAL GEOMETRY. 21 D / -E B *47. 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 so on. 48. The measure of any right-lined angle is an arc of a circle contained between the two... | |
| James Hale - 1829 - 115 páginas
...Supplement of the Arch FA. Fig. 10. 28. The Circumference of every Circle is supposed to be divided into 300 **equal parts, called Degrees ; each Degree into 60 equal parts, called Minutes** ; and these into Thirds, &,c. 29. The measure of an Angle is the Arch of a Circle contained between... | |
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