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Fibo's quickie (Posted on 2014-09-03) Difficulty: 1 of 5
You have 20 seconds (starting at the end of reading the puzzle)
to validate or to disprove the following formula of calculating
the area of a triangle:

S=1/3* ((2AB/C)+(2AC/B)+(2BC/A)).

where the sides A,B & C are represented by three different Fibonacci numbers.

See The Solution Submitted by Ady TZIDON    
Rating: 4.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Solution not so quick answer | Comment 1 of 4
This can't possible work because of the triangle inequality.  No 3 different Fibonacci numbers can possibly be the sides of a triangle.

3 consecutive Fibonacci numbers will satisfy A+B=C thereby being collinear.  This 'triangle' would have zero area. The formula given always has a positive result.

Did you just make the formula up?

  Posted by Jer on 2014-09-03 11:57:38
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