American text books of art education : Geometrical drawing (1873)
Smith, Walter, 1836-1886 · Boston : James R. Osgood & Co. · leaf 85
rcles, each touching the two others and two sides of the triangle. Froui A and C, and from B and C, describe arcs intersecting in 2and 3. Draw A 3 and B 2, cutting each other iu point 1, the centreof the triangle. Draw C 4 through point 1. Bisect angle 1 4 B,the bisecting line cutting B 2 in 5. det… … Prob. S9. — Within an equilateral triangle ABC,/o inscribe threeequal circles, each touching the two others and one side of the tiianqle. Proceed, as in the last problem, to find the centre of the triangle,and to draw lines from each angle through the centre of the triangleto the opposite side.…
Geometrical drawing
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