bonjour
40 x 80 = 3 200
aire rectangulaire = 3 200 m²
aire des 2 parties semi circulaire = 3.14 x 20² = 1 256 m²
aire = 4 456 m²
P = 2 x 80 + 3.14 x 20 = 222.8 m
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bonjour
40 x 80 = 3 200
aire rectangulaire = 3 200 m²
aire des 2 parties semi circulaire = 3.14 x 20² = 1 256 m²
aire = 4 456 m²
P = 2 x 80 + 3.14 x 20 = 222.8 m