Industrial drawing and geometry; an introduction to various branches of technical drawing (1911)
Spooner, Henry John, 1856- · London, New York [etc.] Longmans, Green, and co. · leaf 38
Fig. 63.—Triangle, with angles in givenproportion. … 35° = 55, intersecting the perpendicular at E.Draw DC parallel to AB and 1] (the altitude) from it.Then join CA and CB, and ACB is the required ti-iangle (Euc. III. aS).
Mechanical drawing · Geometrical drawing
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