Fractured Farmland

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While flying over farmland, a pilot notices the rectangular shape of the fields below. She sketches the lines that divide the fields.

When she returns to the airport, she wonders how many different rectangles can be formed by the lines drawn?

Puzzle Picture

HINT: Don't forget that a square is also a rectangle.

(Solution)


Puzzle copied, with permission, from Michael DiSpenzio's book called Critical Thinking Puzzles.

More information is available about this book.

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10 January 1996