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pb=1,2*0,8*2=1,92
pdachu=0,5*1,2*2=1,2
pdachu2=0,8*0,3*0,5*2=0,24
ppodstawy=1,2*0,8=0,96
0,5^2-0,3^2=x^2
0,25-0,09=x^2
x=0,4
Pcalkowite=pp+pb+pdachu+pdachu2+podstawa
pcalkowite=5,6