# Archimedes Laboratory Project™ Puzzles & Mental Activities that Enhance Critical and Creative Thinking Skills

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SUNDAY PUZZLE #64
 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? 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? 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? You can comment and discuss this puzzle on our FaceBook web page. › Click to show/hide the solution

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