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A square frame 
20140101 

From steve: using 6" wide boards how many inches would each of 4 boards equal in length need to be to produce a square with an inside perimeter of 84 inches on a side? what is the exterior perimeter? There is to be 45 degree cuts at each end of each board.
What formula is used to make this calculation? Answered by Harley Weston. 


