American text books of art education : Geometrical drawing (1873)
Smith, Walter, 1836-1886 · Boston : James R. Osgood & Co. · leaf 43
Prob. 33. — Within a given circle, to inscribe an equilateral triangle. Draw a diameter 1 2. With centre 1, and the radius of the givencircle as radius, describe an are to cut the circumference in points 3and 4; draw 2 3, 3 4, 4 2. 2 3 4 is the required triangle. Prob. 34. — On a given base A B, to…
Geometrical drawing
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