Spanton, J. Humphrey (John Humphrey) · London, Macmillan and Co., Limited; New York, The Macmillan Company · leaf 61
INSCRIBED AND DESCRIBED FIGURES. 47 meeting at the point D. Join CD and produce it to E, Bisect the angle DBE by a line cutting CE in F. With D as centre, and DF as radius, mark off the points G and H, From the points F, G, and H as centres, and with a .^ radius equal to FE draw the three inscribed… … 73. In a given equilateraltriangle ABC, to inscribesix equal circles touchingeach other. Having drawn the threecircles according to the lastproblem, draw lines through G and H, parallel to the sides of the triangle, till they meet thelines bisecting the angles in the points L, M, and N. Thesepoints…
Geometrical drawing · Design · Drawing
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