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b=3,4
Obw= 2*2,2+2*3,4= 11,2 cm
Pole= 2,2*3,4=7,48 cm
2,1/5 = 2,2
Obwód
2*2,2+2*3,4=11,2
Pole
2,2*3,4=7,48
2 * (2,2 +3,4)
2* 5,6
obw= 11,2cm
Pole:
2,2 *3,4= 7,48cm²