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Or, from 8 times the chord of half the arc, subtract the chord of the whole arc, and \$ of the remainder will be the length of the arc, nearly.
Cyclopedia of Architecture: Historical, Descriptive, Typographical ... - Page 285
by Robert Stuart - 1854
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The operative mechanic's workshop companion, and the scientific gentleman's ...

...2074-225 ft. theradius. X — 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 onethird of the remainder is equal the length of the arc. Required the length of the arc ABC, the chord...
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Watson's Tutor's assistant; or, Complete school arithmetic

William WATSON (of Beverley.) - Arithmetic - 1845 - 12 pages
...MENSURATION OF SURFACES. PROBLEM 1.— To find the length of any arc of a circle. RULE 1 . — From eight times the chord of half the arc subtract the chord of the wlwle arc, and \ of the remainder will be the length of the arc nearly. RULE 2.— Multiply the number...
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Elements of Drawing and Mensuration Applied to the Mechanic Arts: A Book for ...

Charles Davies - Geometrical drawing - 1846 - 240 pages
...a circle when the chord and radius are given ? 1st. Find the chord of half the arc. 2d. From eight times the chord of half the arc, subtract the chord of the whole arc, and divide the remainder by three, and the quotient will be the length of the arc, nearly. EXAMPLES. 1....
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The Practical Engineer's Pocket Guide: Containing a Concise Treatise on the ...

Mechanical engineering - 1847 - 178 pages
...= 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...
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The Elements of Sailmaking: Being a Complete Treatise on Cutting-out Sails ...

Robert Kipping - 1847 - 167 pages
...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...
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Ticknor's Mensuration, Or, Square and Triangle: Being a Practical and ...

Almon Ticknor - Measurement - 1849 - 144 pages
...radius are given ; or of any arc of a circle. RULE 1. — Find the chord of half the arc. 2. From eight times the chord of half the arc, subtract the chord of the whole arc, and divide the remainder by three, and the quotient will be the length of the arc nearly. 1. The chord...
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The Mechanic's Text-book and Engineer's Pocket Guide: Containing a Concise ...

Thomas Kelt - Mechanical engineering - 1849 - 403 pages
...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...
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Scribner's Engineers' and Mechanics' Companion: Comprising United States ...

J. M. Scribner - Mechanical engineering - 1849 - 264 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...
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ELEMENTARY GEOMETRY, WITH APPLICATIONS IN MENSURATION.

CHARLES DAVIS, L.L. D. - 1850
...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 the 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...
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An introductory treatise on mensuration, in theory and practice

John Radford Young - Measurement - 1850 - 12 pages
...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...
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