Higbee, F. G · New York, John Wiley & Sons · leaf 123
Fig. 90. … Fig. 91. is the developed, cylinder. It will be obvious from the figurethat since the development is symmetrical on each side of thecenter hne 12-I only one-half of the base need be divided in orderto develop the whole cyhnder. CYLINDRICAL SURFACES I13 PROBLEMS ON CYLINDERS 187. The axis of a…
Geometry, Descriptive
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