Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 25
Fig. 20. Fig. 21. To describe an arc of a circle passing through three given points^ luhere thecentre is not available (Fig. 21). CONSTRUCTION OF GEOMETRICAL PROBLEMS. 9 From the extreme given points A and B describe arcs A E and B D ;through the third given point 0 draw lines from A and B,…
Mechanical drawing
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