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96 ---- 100%
x ---- 60%
100x = 96 x 60
100x = 5760 /: 100
x = 57,6 [cm]
Odp. Obwód wynosi 57,6 cm.
0.96*60=57.6
60%=57.6cm
Obw. β = 96 * 60%
96 * 0,6 = 57,6
Odp. Obwód β wynosi 57,6 cm.