Construction Of An Equilateral Triangle Inscribed In A Circle

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An illustration showing how to construct an equilateral triangle inscribed in a circle. “With the radius of the circle and center C draw the arc DFE; with the same radius, and D and E as centers, set off the points A and B. Join A and B, B and C, C and A, which will be the required triangle.”


Albert A. Hopkins Scientific America: Handy Book Of Facts And Formulas (New York: Munn & Co., Inc., 1918) 37


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