Elements of surveying and levelling; with descriptions of the instruments and the necessary tables (1870)
Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes & Company · leaf 259
The areas of the end sections are easily found. It is onlynecessary, in each case, to add together the areas of the trape-zoids composing the whole end figure, as represented in thediagiam, and subtract therefrom the sum of the triangles whichlie outside the section. The dimensions of these… … \2.6 M Now, if a section of this prismoid be taken midway betweenthe two ends, each of its several dimensions must be an arith-metical mean of the corresponding measurements of the endsections. Thus, the centre cutting is found to be 5 ft.; the dis-tance from the angle to slope stake, on the left,…
Surveying
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