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donsteward.blogspot.com

this work on a 7 pin arrangement (isometric) follows an article by W.A. Ewbank (in Nov 1984) and the task was developed by Dave Kirkby (then at Sheffield City Polytechnic) a ppt is here it can be beneficial to start work on the sum of the interior angles of polygons with a restricted set of angles, in this case multiples of 60 degrees (and some of 30 degrees) [companion resources involve multiples of 45 degrees, on a square grid] the work begins by finding the angles between any two lines…

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