File:Dudeney-Puzzles-and-Curious-Problems-240.png
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File usage
The following 5 pages use this file:
- Henry Ernest Dudeney/Puzzles and Curious Problems
- Henry Ernest Dudeney/Puzzles and Curious Problems/240 - Counting the Triangles
- Henry Ernest Dudeney/Puzzles and Curious Problems/240 - Counting the Triangles/Solution
- Henry Ernest Dudeney/Puzzles and Curious Problems/Geometrical Problems
- Henry Ernest Dudeney/Puzzles and Curious Problems/Geometrical Problems/Various Geometrical Puzzles