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english The pink cat-claw shape is bounded by 3 arcs of circle with same diameter. The perimeter of the green parallelogram is 42 cm long and its height is half the radius of the circles. Then, the area of the pink shape is: larger, smaller or equal to the area of the green parallelogram?
francais La forme rose ressemblant à une griffe de chat est délimitée par trois arcs de cercle ayant même diamètre. Le périmètre du parallélogramme vert est de 42 cm et sa hauteur correspond à la moitié du rayon des cercles. Donc, la zone de la forme curvilinéaire rose est-elle: supérieure, inférieure ou égale à l'aire du parallélogramme vert?
italiano La forma rosa ad artiglio di gatto è delimitata da tre archi di cerchio di diametro uguale. Il perimetro del parallelogramma verde è di 42 cm e la sua altezza, la metà del raggio dei cerchi. Quindi, l'area della forma curvilinea rosa è: maggiore, minore o uguale all'area del parallelogramma verde?

Sunday puzzle

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Text and images by Gianni A. Sarcone 
Labels: SUNDAY PUZZLE, puzzles to solve, recreational mathematics, Archimedian curve
You can use the material shown on this page for educational purpose only as long as you credit us [© G. Sarcone,] and link back to
Creative Commons LicenseSunday Puzzle by Gianni A. Sarcone is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
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