| Charles Davies - 1846 - 399 sider
...CIRCLE MEASURE OF TIME. 40. 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.** For astronomical purposes, the circumference of the circle is also supposed to be divided into 12 equal... | |
| Charles Davies - 1846 - 240 sider
...angles. 26. How is it divided? It is divided into 360 equal parts called degrees, each degree is divided **into 60 equal parts called minutes, and each minute into 60 equal parts called seconds.** The degrees, minutes, and seconds, are marked thus, °, ', " ; and 9° 18' 10", are read, 9 degrees,... | |
| Henry Hopwood - 1846 - 209 sider
...English mathematicians, to be divided into 360 equal parts, called degrees; each degree is subdivided **into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.** Degrees are marked (°), minutes ('), and seconds ("). These degrees vary in length according to the... | |
| Mary Somerville - 1846 - 468 sider
...the i«a. NOTE 50, p. 9.— Ninety degrees. A circle is divided into 360 equal parts, or degrees ; **each degree into 60 equal parts, called minutes; and each minute into 60 equal** pans, called seconds. It is usual to write these quantities thus, 15° 16' 10", which means fifteen... | |
| James Robinson (of Boston.) - 1847
...The half circle FGH is a semicircle. 45. The circumference of every circle is supposed to be divided **into 360 equal parts, called degrees ; and each degree...and each minute into 60 equal parts, called seconds.** Hence, a semicircle measures 180 degrees, and a quadrant 90 degrees. 46. The measure of an angle is... | |
| Anthony Nesbit - 1847 - 426 sider
...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.** 40. The diameter of a circle is a right line drawn through the centre, and terminating in the circumference... | |
| Daniel Adams - 1849 - 128 sider
...are sextants. 10. The circumference of every circle is divided into 360 equal parts, called Degrees; **each degree into 60 equal parts, called Minutes ;...and each minute into 60 equal parts, called Seconds.** 11. Degrees, minutes, and seconds, are marked respectively °, ', "; they are used in mensuration and... | |
| Charles Davies - 1854 - 322 sider
...supposed to be divided into 360 equal parts, called degrees ; each degree is supposed to be divided **into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds.** Degrees, minutes, and seconds, are designated respectively, by the characters ° ' ". For example,... | |
| John Lee Comstock - 1854
...the star A. 132. Each of the 12 signs of the zodiac is divided into 30 smaller parts, called degrees; **each degree into 60 equal parts, called minutes, and each minute into 60** parts, called seconds. The division of the zodiac into signs, is of very ancient date, each sign having... | |
| Charles Davies, William Guy Peck - 1855 - 592 sider
...this system of measurement, the entire circumference is 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 right angle contains 90 degrees. The radius of the measuring circle is generally taken equal to... | |
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