American text books of art education : Geometrical drawing (1873)
Smith, Walter, 1836-1886 · Boston : James R. Osgood & Co. · leaf 84
C. From H mark off line G F on B C in 1. Draw F I.G H I F is the required oblong. Prob. 8G.— To inscribe a square in a given trapezium, which hasadjacent pairs of sides equal, as A B C D. Draw a diagonal A B. Find the centre of the figure in point 1,by bisecting angle C. At 1 erect a perpendicular…
Geometrical drawing
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