Disque : 2r = 2 x 3.5 = 21.99 cm2
Grand carré : c2 = 92 = 81 cm2
Trapèze : = = 47.25 cm2
Rectangle : L x l = 2.2 x 2 + 4.5 x 1.8 = 16.02 cm2
Parallélogrammes : b x h = 3.5 x 4.5 x 2 = 31.5 cm2
Total : 21.99 + 81 + 47.25 + 16.02 + 31.5 = 197.76 cm2
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Disque : 2r = 2 x 3.5 = 21.99 cm2
Grand carré : c2 = 92 = 81 cm2
Trapèze : = = 47.25 cm2
Rectangle : L x l = 2.2 x 2 + 4.5 x 1.8 = 16.02 cm2
Parallélogrammes : b x h = 3.5 x 4.5 x 2 = 31.5 cm2
Total : 21.99 + 81 + 47.25 + 16.02 + 31.5 = 197.76 cm2