Henry Ernest Dudeney/Modern Puzzles/133 - A Problem for Surveyors
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Modern Puzzles by Henry Ernest Dudeney: $133$
- A Problem for Surveyors
- There are tricks in every trade, and the science of numbers contains an infinite number of them.
- In nearly every vocation of life there are little wrinkles and short cuts that are most useful when known.
- For example:
- A man bought a little field, and here is a scale map that was given to me.
- I asked my surveyor to tell me the area of the field,
- but he said it was impossible without some further measurements;
- the mere length of one side, $7$ rods, was insufficient.
- What was his surprise when I showed him in about two minutes what was the area!
- Can you tell how it is to be done?
Click here for solution
Sources
- 1926: Henry Ernest Dudeney: Modern Puzzles ... (previous) ... (next): Geometrical Problems: Various Geometrical Puzzles: $133$. -- A Problem for Surveyors
- 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Geometrical Problems: Triangle, Square & Other Polygon Puzzles: $263$. A Problem for Surveyors