If you were to construct a 7 x 7 checkered square (i.e., a 7 x 7 chess board), how many rectangles would there be in total? You need to include squares too because a square is a special kind of rectangle.
Hint:
All the rectangles on the board can be identified by connecting:
2 points of the 8 in the top edge (to form the length of the rectangle) and
2 points of the 8 in the left edge (to form the breadth of the rectangle).
2 points of the 8 in the top edge (to form the length of the rectangle) and
2 points of the 8 in the left edge (to form the breadth of the rectangle).
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