Odpowiedź:
Pp=a²=(9cm)²=81cm²
Pb=4*a*h=4*9cm*6cm=216cm²
Pc=2Pp+Pb=2*81cm²+216cm²=162cm²+216cm²=378cm²
Liczę na naj ;)
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Odpowiedź:
Pp=a²=(9cm)²=81cm²
Pb=4*a*h=4*9cm*6cm=216cm²
Pc=2Pp+Pb=2*81cm²+216cm²=162cm²+216cm²=378cm²
Liczę na naj ;)