Haswell's engineers' and mechanics' pocket-book .. (1844)
Haswell, Chas. H. (Charles Haynes), 1809-1907 · New York, Harper & brothers · leaf 69
gular Polygon, abcdefg—fig. 10.Rule.—Draw diagonals to divide the ligure into trapeziums andtriangles ; find the area of each separately, and the sum of the wholewill give the area required. To find the Area of a Long Irregular Figure, bdca—fig. 11.Rule.—Take the breadth in several places, and at… … 14. 6 A/ rr^ 1 ^^ ■^^ / o \ \^ q\ ^\ hi. To find the Diameter and Circumference of any Circle.Rule 1.—Multiply the diameter by 3.1416, and the product willbe the circumference. F 62 MENSURATION OF SURFACES. Rule 2.—Divide the circumference by 3.1416, and the quotientwill be the diameter. Rule…
Engineering · Mechanical engineering
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