Essentials of drafting; a text and problem book for apprentice, trade and evening technical schools (1918)
Svensen, Carl L. (Carl Lars), 1884- · New York, D. Van Nostrand company · leaf 35
£/?d Posiffon I r/g. as ^° Method … Fig. 4-4 the radius R. Draw DE parallel to BC, and at a distance equalto R from it. Draw FG parallel to AB, and at a distance equalto R from it. Where BE and FG cross, gives point 0, the centerof the required arc. To draw a Circle, Passing through Any Three Points (not in theSame Straight Line)…
Mechanical drawing
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