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On 2022/Oct/12, at 03:59, Prof. Keith S. Taber via Phys-l <phys-l@mail.phys-l.org <mailto:phys-l@mail.phys-l.org>> wrote:
I can also offer '11'…
K
On 2022/Oct/11, at 23:47, John Denker via Phys-l <phys-l@mail.phys-l.org <mailto:phys-l@mail.phys-l.org>> wrote:
Hi --
Here is a puzzle that has been floating around recently:
https://av8n.com/physics/img48/tri-inference.png <https://av8n.com/physics/img48/tri-inference.png>
Given:
The first figure has a score of 1.
The second figure has a score of 5.
Questions:
a) What is the score of the third figure?
b) How do you know?
c) How sure are you?
Remarks:
* Hint: It's harder than it looks.
* There's no physics in it per_se, but similar situations
arise in physics All The Time.
* This is not a word game. No wise-guy dirty tricks. The
things that look like triangles are triangles. The things
that look to be congruent are congruent.
* Imagine assigning this to your students. Think about
what you would infer from the various answers you get.
* Hint: This can be used to illustrate an interesting
point, more interesting than the plain numerical answer.
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