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Find number of rectangles in a chessboar...

Find number of rectangles in a chessboard, which are not a square.

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To find the number of rectangles in a chessboard that are not squares, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Chessboard Layout**: A standard chessboard has 8 squares along each side, which means there are 9 horizontal lines and 9 vertical lines (including the edges). 2. **Choosing Lines to Form Rectangles**: ...
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