The total area of a compound shape is found by adding up the areas of the rectangles that have created the whole shape. This may be done in more than one way. The calculation may use a subtraction of ...
IN the issue of NATURE of Jan. 14 I gave the smallest ‘associated’ rectangle, consisting of 3 rows which has the property of the diagonals one way summing to the same as the rows. This was with ...
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