Pp=20²=400cm²
Pśb=20*5√3=100√3cm²
Pc=2Pp+4Pśb
Pc=2*400+4*100√3
Pc=800+400√3cm²
Pc=400(2+√3)cm²
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Pp=20²=400cm²
Pśb=20*5√3=100√3cm²
Pc=2Pp+4Pśb
Pc=2*400+4*100√3
Pc=800+400√3cm²
Pc=400(2+√3)cm²