 | Peter Nicholson - 1809 - 426 pages
...whose diameter w l6f. 5in. ? f. in. 16 5 XSf 49 3 2 4 1 2)51 7 1 feet 25 9 6 answer nearly. METHOD II. Multiply the diameter by 3'1416, and the product will...be the circumference. Or divide the circumference by3'14l6, and the quotient will be the diameter. This method comes nearer to the truth than the foregoing,... | |
 | Thomas Curtis - Aeronautics - 1829 - 810 pages
...12'624 X 14'6 = 553-632 .qua« feet. Answer. PROB. VIII. To find the circumference of a circle, whose diameter is given, or the diameter when the circumference...3-1416, and the product will be the circumference nearly ; or divide the circumference by 3-1416, and the quotient will be the diameter nearly. Demonstration.... | |
 | Tobias Ostrander - Measurement - 1834 - 182 pages
...both ways by the circumference. PROBLEM I. To find the circumference of a circle, the diameter being given. Rule — Multiply the diameter by 3,1416, and the product will be the circumference. Or, as 113 is to the diameter, so is 355 to the circumference. Note. — The above proportions are very... | |
 | James Gallier - Building - 1836 - 228 pages
...longest opposite angles, which will divide the figure into two triangles, which measure as before. To find the Circumference of a Circle, when the Diameter...Circumference is given. RULE. — Multiply the diameter by 3.1416, and the product will be the circumference ; or divide the circumference by 3.1416, and the... | |
 | Adrien Marie Legendre - Geometry - 1836 - 394 pages
...Ans. 1075.298375. 3. To find the area of a decagon whose side is 20. Ans. 3077.C8352. PROBLEM VIII. To find the circumference of a circle when the diameter...given, or the diameter when the circumference is given. Ki ji'. — Multiply llie diameter by 3.1416, and the product will be the circumference ; or, divide... | |
 | Adrien Marie Legendre - Geometry - 1837 - 376 pages
...Ans. 1075.298375. 3. To find the area of a decagon whose side is 20. Ans. 3077.68352. PROBLEM VIII. To find the circumference of a circle when the diameter...circumference is given. RULE. — Multiply the diameter by 3.1416, and the product will be the circumference ; or, divide the circumference by 3.1416, and the... | |
 | Arithmetic - 1838 - 218 pages
...high, from the "square of the building" to the top, how many squares ? Ans. 6sq. 93in. NOTE 3. — To find the circumference of a circle, when the diameter is given: Say, As 7 are to 22, so is the diameter to the circumference; or the contrary, As 22 are to 7, so is... | |
 | Thomas Curtis (of Grove house sch, Islington) - 1839 - 812 pages
...find the circumference of a circle, whose diameter it given, or the diameter when the circumference ii given. Rule.— Multiply the diameter by 3-1416, and the product will be the circumference nearly ; or divide the circumference by 3-1416, and the quotient will be the diameter nearly. Demonstration.... | |
 | Charles Davies - Geometrical drawing - 1840 - 262 pages
...area ? Ans. 219,255. PROBLEM X. 18. To find the circumference of a circle when the diameter is known. RULE. Multiply the diameter by 3,1416, and the -product will be the circumference. EXAMPLES. 1. What is the circumference of a circle whose diameter is 17 ? We simply multiply the number... | |
 | J. M. Scribner - Measurement - 1844 - 130 pages
...the transverse, and the shortest the conjugate axis ; thus, ABCD (fig. 8) is an ellipse. PROBLEM I. To find the circumference of a Circle when the diameter is given. ART. 16. Rvle I.— Multiply the diameter by 3.14159, and the product will be the circumference. Or,... | |
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To find the circumference of a circle when the diameter is given, or the diameter when the circumference is given. RULE. — Multiply the diameter by 3.1416... 
