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freebeard · 11-12-2014, 04:20 PM

6.5 X pi = 20.4203522483336. Mark the circle using 4" arcs, once clockwise and once anticlockwise. Then with any discrepancy, split the difference.

11-12-2014, 04:20 PM	#14 (permalink)
freebeard Master EcoModder Join Date: Aug 2012 Location: northwest of normal Posts: 28,785 Thanks: 8,178 Thanked 8,950 Times in 7,392 Posts	6.5 X pi = 20.4203522483336. Mark the circle using 4" arcs, once clockwise and once anticlockwise. Then with any discrepancy, split the difference.