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Il cerchio: ripasso lunghezza circonferenza
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7 cm
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59; 60,3; 19,5
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6 cm
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49; 50,2; 16,2
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Vero; Vero; Falso C = 2π * r; Falso d = C/2π
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47,1 cm
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37,68 cm
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62,8 cm; C = π * d = 5,8 π, 18,21 m; C = 2π * r = 8,4 π, 26,38 cm; C = 2π * r = 58 π, 182,12 cm
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