You have probably heard about the daredevil Philippe Petit who sneaked on top of the World Trade Center and walked between the towers on a tightrope in the August of 1974. I learned about him from a wonderful picture book by Mordecai Gerstein: The man who walked between the towers. Here is one of the illustrations:
Some of you also likely saw the documentary made about Philippe Petit: Man on Wire and the animated film based on the above book.
A book, a documentary, an animation. Now it is time for a puzzle.
When Philippe Petit stepped onto the tightrope it was horizontally stretched between the towers. Under his weight, the cable hang a bit down. When Philippe reached the midpoint, the cable under his feet was 10 feet below its original horizontal position and the overall length of the cable got extended by 1 foot. What is the original length of the cable between the towers?
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A book, a documentary, an animation. Now it is time for a puzzle.
When Philippe Petit stepped onto the tightrope it was horizontally stretched between the towers. Under his weight, the cable hang a bit down. When Philippe reached the midpoint, the cable under his feet was 10 feet below its original horizontal position and the overall length of the cable got extended by 1 foot. What is the original length of the cable between the towers?