MHB Puzzle Game - How Many Combinations - How Long To Solve

benjimon
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For this puzzle game:
MillionPuzzleGame.com

I'd like to check I worked out the number of combinations correctly.

Also, how long would a computer take to solve it?
 
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What number of combinations did you get?
 
Seemingly by some mathematical coincidence, a hexagon of sides 2,2,7,7, 11, and 11 can be inscribed in a circle of radius 7. The other day I saw a math problem on line, which they said came from a Polish Olympiad, where you compute the length x of the 3rd side which is the same as the radius, so that the sides of length 2,x, and 11 are inscribed on the arc of a semi-circle. The law of cosines applied twice gives the answer for x of exactly 7, but the arithmetic is so complex that the...
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