Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 22
A B E- Fig. 10. … Fig. 11. as the base of the required angle. From A, with any suitable radius, describethe arc B C, and from «, with the same radius, describe the arc h c. Withthe compasses take the length of the chord B C, and, from h as centre, describean arc cutting the arc ^ c at c, and draw theline a c; cab is…
Mechanical drawing
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