Henry Ernest Dudeney/Puzzles and Curious Problems/207 - Six Straight Fences
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Puzzles and Curious Problems by Henry Ernest Dudeney: $207$
- Six Straight Fences
- A man had a small plantation of $36$ trees, planted in the form of a square.
- Some of these died, and had to be cut down in the positions indicated by crosses in the diagram.
- How is it possible to put up $6$ straight fences across the field,
- so that every one of the remaining $20$ trees shall be in a separate enclosure?
- As a matter of fact, $22$ trees might be so enclosed by $6$ straight fences if their positions were a little more accommodating,
- but we have to deal with the trees as they stand in regular formation, which makes all the difference.
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Sources
- 1932: Henry Ernest Dudeney: Puzzles and Curious Problems ... (previous) ... (next): Geometrical Problems: Various Geometrical Puzzles: $207$. -- Six Straight Fences
- 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Geometrical Problems: Dividing-the-Plane Puzzles: $301$. Six Straight Fences