GEOMETRICAL PROBLEMS. 35 Prob. 72. Within a given circle AFD. . . .G to draio sixequal circles tangent to each other and the given circles. Draw the diameters AB, CD, and EF, di-viding the circle into six equal parts (Prob.24, Note). Divide any radius as OB intothree equal parts (Prob. 11), at…
Mechanical drawing
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