Sullivan, Christine [Gordon]. [from old catalog] · New York, Cincinnati [etc.] American book company · leaf 29
Problem 2. — In a given squaj-e to inscribe aregular octagon. Let ABCD (Fig. ^S) be the given square.Draw the diagonals intersecting in the pointE. From the corners of the square ABCD ascenters, with a radius equal to AE^ describearcs cutting the sides of the square in thepoints MG, FI, HL, and KN.… … Fig. 38. Problem 3. — To divide a circle into three concentric parts bearing theproportions of i, 2, T) f^om the center. Let ABC (Fig. 39) be the given circle. Mark the center Z>, and GEOMETRIC PROBLEMS. 25 draw AD^ and in this radius describe a semi-circle. Divide the radius AD into six…
Mechanical drawing
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