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" As 7 is to 22, so is the diameter to the circumference, and as 22 is to 7, so is the circumference to the diameter. "
Cyclopedia of Architecture: Historical, Descriptive, Typographical ... - Page 280
by Robert Stuart - 1854
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The millwright & engineer's pocket companion

William Templeton (engineer.) - 1852 - 284 pages
...; separate these six figures into two parts, as 1 13 and 355, then we have the ratio of Metius — As 113 is to 355 so is the diameter to the circumference. And, as 355 is to 113 so is the circumference to the diameter. NOTE. — The ratio of the diameter...
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Engineers' and Mechanics' Pocket-book ...

Charles Haynes Haswell - Engineering - 1853 - 318 pages
...the diameter to the circumference. Or, as 22 is to 7, so is the circumference to the diameter. Or, as 113 is to 355, so is the diameter to the circumference, &c To find the Area of a Circle. RULE L— Multiply the square of the diameter by .7854, or the square...
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Norris's Hand-book for Locomotive Engineers and Machinists ...

Septimus Norris - Locomotives - 1854 - 334 pages
...circumference ; or divide the circumference by 3-1416, and the quotient will be the diameter, RULE 2. — As 7 is to 22, so is the diameter to the circumference....to 7, so is the circumference to the diameter. RULE 3 —As 113 is to 355, so is the diameter to the circumference. As 355 is to 113, so is the circumference...
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The Mechanic's, Machinist's, and Engineer's Practical Book of Reference ...

Charles Haslett - Engineering - 1855 - 482 pages
...circumference given, to Jind the diameter. RULE 1. As 7 is to 22, so is the diameter to the circumference. Or, as 22 is to 7, so is the circumference to the diameter. 2. As 1 is to 3-1416, so is the diameter to the circumference. Or, as 3'14]6 is to 1, so is the circumference...
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Mechanics and Engineers Book of Reference and Engineers Field Book

Charles W. Hackley - Engineering - 1856 - 530 pages
...circumference given, to find the diameter. RULE 1. As 7 is to 22, so is the diameter to the circumference. Or, as 22 is to 7, so is the circumference to the diameter. 2. As 1 is to 3-1416, so is the diameter to the circumference. Or, as 3*1416 is to 1, so is the circumference...
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The Mechanic's, Machinist's, and Engineer's Practical Book of Reference ...

Charles Haslett - 1855 - 544 pages
...circumference given, to find the diameter. RULE 1. As 7 is to 22, so is the diameter to the circumference. Or, as 22 is to 7, so is the circumference to the diameter. 2. As 1 is to 3-1416, so is the diameter to the circumference. Or, as 3-1416 is to 1, so is the circumference...
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Burnham's Arithmetic, Revised: A New System of Arithmetic, on an Improved ...

Charles Guilford Burnham - Arithmetic - 1857 - 328 pages
...calculation to be about 34- times the diameter; or more accurately, by decimals, as 1 is to 3.1416, or as 113 is to 355, so is the diameter to the circumference. Hence, if the diameter is given, to find the circumference, it may be found by multiplying the diameter...
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A New System of Arithmetic, on an Improved Plan, Embracing the Rules of ...

Charles Guilford Burnham - 1857 - 342 pages
...given, to find the circumference, it may be found by multiplying the diameter by 3^, or by 3.1416 : or as 113 is to 355, so is the diameter to the circumference. 1. What is the circumference of a circle whose diameter is 42 feet ? 42x3} = 132 ft.; or 42x3.1416...
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Mensuration and Practical Geometry: Containing Tables of Weights and ...

Charles Haynes Haswell - Measurement - 1858 - 350 pages
...Diameter of a Circle (Fig. 22). Divide the circumference by 3.1416, and the quotient is the diameter. Or, as 22 is to 7, so is the circumference to the diameter. To ascertain the Area of a Circle (Fig. 22). RULE. — Multiply the square of the diameter by .7854,...
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A practical treatise on ... land and engineering surveying, Volume 34

Henry S. Merrett - 1863 - 476 pages
...circumference given to find the diameter. Rule 1. As 7 is to 22 so is the diameter to the circumference. Or : As 22 is to 7 so is the circumference to the diameter. Rule 2. As 1 is to 3.1416 so is the diameter to the circumference. Or: As 3.1416 is to 1 so is the circumference...
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