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P=2ab+2ac+2bc
P=2*6*50+2*6*100+2*50*100=600+1200+10000=11800cm²
b=0,5m=5dm
c=10dm
Pc=2*Pp+Pb
Pc=2*a*b+2*a*c+2*b*c
Pc=2*0,6dm*5dm+2*0,6dm*10dm+2*5dm*10dm
Pc=6dm²+12dm+100dm
Pc=118dm²
liczę na naj ;D
0,5m= 50cm
10dm=100cm
P=2(ab)+2(bc)+2(ac)=2(6*50)+2(50*100)+2(6*100)=2*300+2*5000+2*600=600+10000+1200=11800cm
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