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" Ltldvati, say what is the area of a circle, the diameter of which is measured by seven? "
A System of Land Surveying and Levelling: Wherein is Demonstrated the Theory ... - Page 106
by Peter Fleming - 1815 - 164 pages
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Algebra, with Arithmetic and Mensuration, from the Sanscrit of Brahmegupta ...

Algebra - 1817 - 478 pages
...within the sphere.* 204. Example. Intelligent friend, if thou know well the spotless Ltldvati, say what is the area of a circle, the diameter of which is measured by seven? and the surface of a globe, or area like a net upon a ball, the diameter being seven...
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Algebra: With Arithmetic and Mensuration

Brahmagupta - Algebra - 1817 - 488 pages
...within the sphere.3 204. Example. Intelligent friend, if thou know well the spotless Lildvati, say what is the area of a circle, the diameter of which is measured by seven ? and the surface of a globe, or area like a net upon a ball, the diameter being...
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A New and Concise System of Arithmetick: Containing Vulgar, Decimal, and ...

Beriah Stevens - Arithmetic - 1822 - 436 pages
...the area without finding the cir* •umference. RULE. Multiply the square of the diameter by ,7354, the product is the area. EXAMPLE. What is the area of a circle whose diameter is 14 ? MX 14 X,7i!i4 = 163,9384, answer. By the Sliding Rule. Set 1 on A to the diameter...
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A New System of Arithmetick: In which the Rules are Familiarly Demonstrated ...

William Ruger - Arithmetic - 1832 - 282 pages
...circle, whose diameter is 7, and. circumference 22 ? 11 X3^=38J, or 22X7=154-Hl= -38J-. " ~ Ans. 38J. 2. What is the area of a circle, the diameter of which "is 10 feet 6 inches, and the circumference 31 feet 6 inches ? Ans. 82 feet 8 inchesv i I MENSURATION OF...
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The North American Arithmetic: Part Third, for Advanced Scholars, Volume 3

Frederick Emerson - Arithmetic - 1834 - 300 pages
...proportionals is 10, the ratio 1|, and the number of terms 12. What is the sum of the series ? 111. What is the area of a circle, the diameter of which is 200 feet ? 112. What sum of money must be put on interest, at the rate of 6 per cent. a year, to gain...
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Geometry: Applied to the Mensuration of Lines, Surfaces, Solids, Heights and ...

B[enjamin] Franklin Callender - Measurement - 1836 - 226 pages
...the area. If the circumference only be given, multiply the square of the circumference by .07958. 2. What is the area of a circle, the diameter of which is 10 inches ? ANS. 78.54 sq. in. 3. What is the area of a circular pond 25 rods in circumference ? ANS....
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Ruger's Arithmetick, with Questions and Answers: A New System of Arithmetick ...

William Ruger - Arithmetic - 1841 - 268 pages
...whfrs'e diameter is 7, and circumference 22? llx3J-=38.£, or ,22x7=154-=-4=38|-. . ; Ans. 38£. 2.-. What is the area of a circle, the diameter of which is 10 feet 6 inches, and the circumference 31 feet 6 inches ? Ans. 82 feet 8 inches. MENSURATION OF SOLIDS,...
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Crocker's Elements of land surveying. To which are added, Tables of six ...

Abraham Crocker - 1841 - 486 pages
...Mathematical Dictionary, iStc. , and also the Baron Maseres's Scriptures Logarithmic!, vol. iii. EXAMPLES. 1. What is the area of a circle, the diameter of which is 7 ? By Rule I. 7 x 7 = 49. 49 x -7854 = 38-4846, the area. 2. Required the area of a circle, whose...
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Call's Decimal Arithmetic: On a New and Improved Plan Throughout, Comprising ...

Osman Call - Arithmetic - 1842 - 210 pages
...A CIRCLE BEING GIVEN, TO FIND ITS AREA. RULE. — Multiply the square of the diameter by ,7854. 1. What is the area of a circle, the diameter of which is 12? Ans. 113,0976. 2. What is the area of a circle, the diameter being 9? Ans. 63,6174. THE CIRCUMFERENCE...
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The American House-carpenter: A Treatise Upon Architecture, Cornices and ...

Robert Griffith Hatfield - Architecture - 1845 - 326 pages
...diameters of the table, whose circumference is 38-484, therefore : 2)38-484 19-242 inches. Ans. Another example. — What is the area of a circle, the diameter of which is 3-2 feet ' 3-2, multiplied by 5, gives 16, and the area of 16 is 201-0619, therefore : 5x5— 25)201-0619(8-0424...
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