 | Robert Kipping - 1847 - 224 pages
...height, or total amount of the foot-gore, to find the length on the roach or curve of the foot. RULE. — From eight times the chord of half the arc, subtract the chord of the whole arc, and one.third of the remainder will be the length of the arc nearly.* EXAMPLES. 1. Given the length of... | |
 | Mechanical engineering - 1847 - 190 pages
...and )' = 2074-225 ft-, the radius* To find the length of any given cere of a circle. Rule- — Prom eight times the chord of half the arc subtract the chord of the whole arc, and one third of the remainder is equal the length of the arcRequired the length of the arc ABC, the chord... | |
 | Thomas Kelt - Mechanical engineering - 1849 - 424 pages
...5185-5625, and = 2074-225 ft., the radiui. To find the length of any given arc of a circle. Rule — From eight times the chord of half the arc subtract the chord of the whole arc, and one third of the remainder is equal the length of the arc. MENSURATION. Required the length of the... | |
 | J. M. Scribner - Mechanical engineering - 1849 - 286 pages
...degrees in the arc by the decimal 11745, and that product by the radius of the circle. Or, from 8 ir.es the chord of half the arc, subtract the chord of the whole arc, and j of the remainder will be the length of the arc, nearly. Or, as 3 is to the number of degrees in the... | |
 | Charles Davies - Geometry - 1850 - 218 pages
...the arc of a circle when the chord and radius are given. RULE. I. Find the chord of half the arc. II. From eight times the chord of half the arc, subtract...chord of the whole arc, and divide the remainder by 3, and the quotient will be the length of the arc, nearly. EXAMPLES. 1. The chord .15 =30 feet, and... | |
 | Charles Davies - Geometry - 1850 - 238 pages
...the arc of a circle when the chord and radius are given. RULE. I. Find the chard of half the arc. II. From eight times the chord of half the arc, subtract...chord of the whole arc, and divide the remainder by 3, and the quotient will be the length of the arc, nearly. EXAMPLES. 1. The chord AB=30 feet, and the... | |
 | John Radford Young - Measurement - 1850 - 294 pages
...the length of an arc is almost always given in books on Mensuration. It is as follows: namely: — From eight times the chord of half the arc, subtract the chord of the whole arc, and one-third of the remainder will be the length of the arc, nearly. * The operation for this, by the... | |
 | James Elliot - 1851 - 152 pages
...PROBLEM XIII. Ans. 398 -. To find the Length of an Arc (BCE) approximately (without Tables). EULE. From eight times the chord of half the arc subtract...chord of the whole arc, and divide the remainder by 3. FORMULA. A 8c'-c Arc = -- c being the chord of the whole arc ; and c' that of half the arc. NOTE.... | |
 | Charles Davies - Geometry - 1886 - 340 pages
...of the arc of a circle when the chord and radius are givenRULE I Find the chord of half the, arcIT From eight times the chord of half the arc, subtract...chord of the whole arc, and divide the remainder by 3, and the quotient will be the length of the arc, nearlyEXAMPLES 1 The chord -A5=30 feet, and the... | |
 | Ezra S. Winslow - Business mathematics - 1853 - 264 pages
...- ) 68669.56 ~- 43560 = 1.576 acres. 2 2 J \ To find the length of an arc of a circle. ROLE. — 1. From eight times the chord of half the arc, subtract...chord of the whole arc, and divide the remainder by 3 ; the quotient will be the length of the arc, nearly — a trifle too small. Or, — 2. Multiply... | |
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From eight times the chord of half the arc, subtract the chord of the whole arc, and divide the remainder by 3, and the quotient will be the length of the arc, nearly. 
