| Thomas Simpson - Algebra - 1821 - 408 pages
...right lines, in and about the circle, be supposed divided into some assigned number of equal parts. **2. 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... | |
| Robert Gibson - Surveying - 1821 - 544 pages
...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** 00 equal parts called seconds, and- these into thirds, fourths, &c. these parts being greater or less... | |
| Anthony Nesbit, W. Little - Measurement - 1822
...ADC. " *fi. A sector is any part of a circle bounded by an arc sad two radii. 47. The circumference **of every circle is supposed to be divided into 360...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... | |
| Joseph Emerson Worcester - Atlases - 1822 - 322 pages
...colurvs. equal parts. These are four, the two tropics, and (he two polar circles. The circumference **of every circle is supposed to be divided into 360...equal parts, called minutes ; and each minute into** 00 equal parts, called seconds. They are marked thus, 23° 28' 16" ; i- e. 33 degrees, 28 minute!",... | |
| Euclid, Rev. John Allen - Astronomy - 1822 - 494 pages
...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... | |
| Euclid, Rev. John Allen - Astronomy - 1822 - 494 pages
...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 - Atlases - 1822 - 676 pages
...straight line drawn through the centre from one side of the circumference to the other. The circumference **of every circle is supposed to be divided into 360 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... | |
| Sidney Edwards Morse - Geography - 1822 - 676 pages
...straight line drawn through the centre from one side of the circumference to the other. The circumference **of every circle is supposed to be divided into 360 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... | |
| 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 - Measurement - 1824 - 434 pages
...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 divided into 360...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... | |
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