Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes and company · leaf 257
256 APPLICATIONS Mensuration of the Round Bodie … EXAMPLES. 1. What is the convex surface ofthe zone ABD, the height BE being9 inches, and the diameter of thesphere 42 inches ? First, 42x3.1416=131.9472 = circumference, height = 9 surface =1187.5248 square inches. 2. The diameter of a sphere is 12| feet: what will be»he surface of a zone whose…
Geometry · Plane trigonometry
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