 | Benjamin Greenleaf - 1879 - 238 páginas
...line drawn through the center, and terminated by the circumference, as AE. 173. The circumference of every circle is supposed to be divided into 360 equal parts, called Degrees. B180" 270" What is a Circle ? The Circumference of a circle ? What is an Arc of a circle ? A Diameter?... | |
 | Popular encyclopedia - 1879 - 530 páginas
...pole. The brazen meridian is the circle in which the artificial globe turns, divided into 360 degrees. Every circle is supposed to be divided into 360 equal parts, called dfgrees; each degree into 60 equal parts, called minutes; each minute into 60 equal parts, called seconds,... | |
 | Samuel Maunder - 1880 - 904 páginas
...quarter of a circle, Is a sector having a quarter of the circumference for its arc. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees, each degree into 60 minutes, and each minute into 80 seconds: hence я semicircle contains 180 degrees, andaquadrtnt 90... | |
 | George Woolworth Colton, Joseph Hutchins Colton - 1880 - 152 páginas
...unequal parts. 4. For the purpose of measurement, every circle is conceived to be divided into 3(30 equal parts called Degrees ; each degree, into 60 equal parts called minutes; and each minute, into GO equal parts called Seconds. Degrees are marked °, minutes ', seconds ''.... | |
 | New Sydenham Society, Henry Power, Leonard William Sedgwick - 1882 - 872 páginas
...all the right lines that can be drawn from its central point to any part of it equal The periphery of every circle is supposed to be divided into 360 equal parts, called degrees. C., •'«« of. The area of a circle is found by multiplying die square of the diameter by C., cll'lary.... | |
 | Evan Wilhelm Evans - 1884 - 242 páginas
...arc may be taken as the measure of its subtended angle. To this end the circumference is conceived to be divided into 360 equal parts, called degrees, each degree into 60 minutes, and each minute into 60 seconds. Then, whatever number of degrees, etc., an arc contains,... | |
 | Horatio Nelson Robinson - 1888 - 372 páginas
...sjiits containing 9 yd. 2 qr. each ; how many suits did he make ? Ans. 1 7. LONGITUDE AND TIME. 224. Every circle is supposed to be divided into 360 equal parts, called degrees. Since the sun appears to pass from east to west round the earth, or through 360°, once in every 24... | |
 | Isaac Hammond Morris - 1890 - 440 páginas
...PROBLEM 24. — To construct an angle containing a given number of degrees. The circumference of a circle is supposed to be divided into 360 equal parts, called degrees. The radius of a circle may be set off exactly six times round the circumference ; hence, if an arc... | |
 | Charles Haynes Haswell - 1892 - 334 páginas
...circle without cutting it. A Cotangent is the tangent of the complement of the arc. The Circumference of every circle is supposed to be divided into 360 equal parts, called Degrees ; each degree into 00 Minutes, and each minute into 60 Seconds, and so on. The Complement of an angle is what remains... | |
 | Horatio Nelson Robinson - 1892 - 428 páginas
...times are 4 bu. 3 pk. 2 qt. contained in 336 bu. 3 pk. 4 qt. ? Ans. 70 times. LONGITUDE AND TIME. 224. Every circle is supposed to be divided into 360 equal parts, called degrees. Since the sun appears to pass from east to west round the earth, or through 360°, once in every 24... | |
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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. 
