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d=30cm
d nachylona do h pod kątem 60 stopni
czyli h=1/2d=15 cm
i a=h√3
a=15√3 cm
Pc=2Pp+Pb
Pc=2*a²+4ah
Pc=2*(15√3)²+4*15√3 *15
Pc=2*225*3+4*225√3
Pc≈1350+1559
Pc≈2909 cm² nie starczy
prosze :)