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" ... 1. To find the length of an arc of 30 degrees, the diameter being 18 feet. ' Ans. 4.712364. 2. To find the length of an arc of 12° 10', or 12£°, the diameter being 20 feet. "
Elements of Geometry and Trigonometry Translated from the French of A.M ... - Page 282
by Charles Davies - 1849 - 359 pages
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A Course of Mathematics in Two Volumes for the Use of Academies as Well as ...

Charles Hutton - Mathematics - 1807 - 464 pages
...degrees in the given arc, and that product by the radius of the circle, for the length of the arc *. Ex. 1. To find the length of an arc of 30 degrees, the radius being 9 feet. Ans."4>'7115. Ex. 2. To find the length of an arc of 12° 10', or 12"£, the radius...
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A Course of Mathematics ...: Composed for the Use of the Royal Military ...

Charles Hutton - Mathematics - 1811 - 442 pages
...arc *. Ex. 1. To find the length of an arc of 30 degrees, the radius being 9 feet. Ans. 4-7115. Ex. 2. To find the length of an arc of 12* 10', or 12°|, the radius being 10 feet. Ans. 2-1231. PROBLEM IX. Tofndthc Area of a Circle f. RULE I. Multiply half the...
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A Course of Mathematics: In Three Volumes : Composed for the Use of the ...

Charles Hutton - Mathematics - 1811 - 494 pages
...in the given . arc, and that product by the radius of the circle, for the length of the arc *. EX. 1. To find the length of an arc of 30 degrees, the ^radius being 9 feet. Ans. 4-T1 1:5. EX. 2. To find the length of an arc of 12° 10', or 12"|, the...
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A Course of Mathematics: For the Use of Academies as Well as Private Tuition

Charles Hutton - Mathematics - 1812 - 620 pages
...arc*. • Ex. 1 . To find the length of an arc of 30 degrees, the radius being 9 feet. Ans. 4.7115. Ex. 2. To find the length of an arc of 12° 10', or 12°.J, the radius being 10 feet. Ans. 2.125 1 . PROBLEM IX. Tofind the Area of a. Circle^. RULE I....
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A Course of Mathematics: For the Use of Academies, as Well as Private ...

Charles Hutton - Mathematics - 1822 - 616 pages
...degrees in the giren arr, and that product by the radius of the circle, for the length Of the arc.* Ex. 1. To find the length of an arc of 30 degrees, the radius being 9 feet. ADS. 4-7115. Ex. 2. To find the length of an arc of 12° 10', or the radios being...
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Elements of Geometry and Trigonometry

Adrien Marie Legendre - Geometry - 1836 - 394 pages
...multiplied by the diameter, will give the length of the arc for any diameter whatever. REMARK. — When the arc contains degrees and minutes, reduce the minutes...1. To find the length of an arc of 30 degrees, the diametei being 18 feet. Ans. 4.712364. . 2. To find the length of an arc of 12° 10', or 12£°,the...
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Elements of Geometry and Trigonometry

Adrien Marie Legendre - Geometry - 1837 - 376 pages
...which is done by dividing them by 60. 1. To find the length of an arc of 30 degrees, the diametei oeing 18 feet. ' Ans. 4.712364. 2. To find the length of...2.123472. 3. What is the length of an arc of 10° 15', or IQi0, in a circle whose diameter is 68 ? Ans. 6.082396. PROBLEM X. To find the area of a circle. RULE...
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Elements of Geometry and Trigonometry

Adrien Marie Legendre - Geometry - 1838 - 382 pages
...multiplied by the diameter, will give the length of the arc for any diameter whatever. REMARK. — When the arc contains degrees and minutes, reduce the minutes...4.712364. 2. To find the length of an arc of 12° 10', or 12i°,the diameter being 20 feet. Ans. 2.123472. 3. What is the length of an arc of 10° 15', or 10J°,...
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Elementary Course of Geometry ...

Charles William Hackley - Geometry - 1847 - 248 pages
...radius of the circle, and the product, again, by the decimal •01745, for the length of the arc.* Ex. 1. To find the length of an arc of 30 degrees, the radius being 9 feet. Ans. 4-7115. Ex. 2. To find the length of an arc of 12° 10', or 12°£, the radius...
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Elements of Geometry and Trigonometry

Adrien Marie Legendre - Geometry - 1852 - 436 pages
...multiplied by the diameter, the product is the length of the arc for any diameter whatever. KEMARK. — When the arc contains degrees and minutes, reduce the minutes...of a degree, which is done by dividing them by 60. Ex. 1. To find the length of an arc of 30 degrees, the diameter being 18 feet. Ans. 4.712364. 2. To...
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