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english Prove that, if in any triangle: AQ = AB/3, BR = BC/3, and CS = AC/3. Then, the area of triangles: EFG = ABC/7
francais Prouvez que, si AQ = AB/3, BR = BC/3, et CS = AC/3, alors l’aire des triangles: EFG = ABC/7
italiano Dimostrare che, se AQ = AB/3, BR = BC/3, e CS = AC/3, ne consegue che l’area dei triangoli: EFG = ABC/7

Sunday puzzle

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