A hand book of general instruction for mechanics, containing useful rules and memoranda for practical men (1907)
Smith, Franklin Elijah, 1872- · New York, D. Van Nostrand company · leaf 212
Fig. 23 Thus 4 = diameterAnd 10 = height Then 4 X 3.1416 = 12.5664 circumference 10 125.6640 sq. in. Arts. Example. What is the surface of a cylinder whosediameter is 9 inches and height 15 inches? 9 X 3.1416 = 28.2744 =• circumference Thus, 28.2744 X 15 = 424.1160, area of surface insquare inches.… … The Sphere A sphere is a body bounded by a curved surface, allparts of which are an equaldistance from a certain pointwithin, called the center.The diameter of a sphere is astraight line drawn throughits center, terminating bothways in the surface. The circumference of a sphere is the greatest…
Mechanics · Arithmetic · Measurement
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