American text books of art education : Geometrical drawing (1873)
Smith, Walter, 1836-1886 · Boston : James R. Osgood & Co. · leaf 27
o bisect a given angle ABC. With B as centre, and any radius, describe an arc cutting AB andC B in points 1 and 2 ; with the same centre, and greater radius, cutthe lines again in 3 and 4. Draw lines 1 4 and 3 2 cutting each otherin 5 ; draw a line from B through 5. B 5 bisects the angle. Prob. 8.…
Geometrical drawing
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