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Puzzles & Mental Activities that Enhance Critical and Creative Thinking Skills

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	A triangle is formed with 7 matchsticks of equal length connected end to end. What is the value of angle ‘a’? On a disposé 7 allumettes de longueurs égales de la manière représentée ci-dessous. Que vaut l’angle ‘a’? 7 fiammiferi sono disposti come illustrato qui sotto. Che valore ha l’angolo ‘a’? You can comment and discuss this puzzle on our FaceBook or Blogger web page. › Click to show/hide the solution

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Text and images by Gianni A. Sarcone 
Labels: SUNDAY PUZZLE, puzzles to solve, recreational mathematics, matchsticks
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