| Sidney Edwards Morse - 1822 - 676 páginas
...diameter is a straight line drawn through the centre from one side of the circumference to the other. **The circumference of every circle is supposed to be...equal parts, called degrees ; each degree into 60** minutes ; each minute into 60 seconds. An arc of a circle is part of its circumference. All angles... | |
| Euclid, Rev. John Allen - 1822 - 494 páginas
...tailed acute.* * Mathematicians have supposed the whole circumference of a circle to be divided in **360 equal parts, called degrees, each degree into...called minutes and each minute into 60 equal parts,** cal:ed seconds, &c. and a circle being described iron) the vertex of an angle, as a centre, an angle... | |
| Sidney Edwards Morse - 1822 - 676 páginas
...diameter is a straight line drawn through the centre from one side of the circumference to the other. **The circumference of every circle is supposed to be...equal parts, called degrees ; each degree into 60** minutes ; each minute into GO seconds. An arc of a circle is part of its circumference. All angles... | |
| William Jillard Hort - 1822
...and in more modern times, Napier, the inventor of logarithms, and Briggs. In plane trigonometry, the **circle is supposed to be divided into 360 equal parts, called degrees** ; every degree into 60 equal parts, called minutes ; every minute into 60 equal parts, called seconds... | |
| Anthony Nesbit - 1824 - 434 páginas
...part of a circle, as ADC. 46. A sector is any part of a circle bounded by an arc and two radii. 47. **The circumference of every circle is supposed to be...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... | |
| Jeremiah Day - 1824
...measuring the latter, a circle is introduced. The periphery of every circle, whether great or small, **is supposed to be divided into 360 equal parts called degrees, each degree into 60** minutes, each minute into 60 seconds, each second into 60 thirds, &c. marked with the characters °,... | |
| George G. Carey - 1825 - 166 páginas
...still be in the plane of the circle. 8. Degrees, fyc. — All circles, whether great or small, are **supposed to be divided into 360 equal parts, called...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
...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 - 241 páginas
...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,... | |
| Thomas Keith - 1826 - 442 páginas
...thus the arc ac is the measure of the angle авс and the arc DE is the measure of the angle ABC. (H) **The circumference of every circle is supposed to be...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... | |
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