A plywood sheet is 45 by 45 inches. What is the approximate diameter of the log the sheet was made from?
The diameter d of a circle equals c/π, where c is the circumference, but please do not make a mistake. The diameter of the log is not 45/π.
Puzzle provided by Kordemsky: The Moscow Puzzles (Dover)
Problem and solution
A plywood sheet is 45 by 45 inches. What is the approximate diameter of the log the sheet was made from?
The diameter d of a circle equals c/π, where c is the circumference, but please do not make a mistake. The diameter of the log is not 45/π.
Puzzle provided by Kordemsky: The Moscow Puzzles (Dover)
Problem and solution
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