The essentials of descriptive geometry . Fig. 43. 48 ESSENTIALS OF DESCRIPTIVE GEOMETRY of the revolved position of N. BN may now be revolved to thefirst position bn, and n will be shown at n. The elevation ofthe hopper may now be drawn as shown by the figure. 39. Special Cases, i. To find the length of a hne which liesin the first and third quadrants.

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Keywords: ., bookcentury1900, bookdecade1910, bookidcu3192400462, bookyear1915