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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.)
Not convinced Comment 4 of 4 |

A=(s(s-a)(s-b)(s-c))^(1/2) is Heron's formula. The letter T and the delta sign are also sometimes used.

It is understood that A is an area, but I see no reason in principle why A shouldn't be written as B, C, D, ... or even S.

  Posted by broll on 2014-09-10 00:14:23
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