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8kwadrat=64
64*6=384
Pkwadratu-6*6=36
384:36
Pc = 6 * 64
Pc = 384 cm 2
Pc prostopadłościanu = Pp + Pb
Pc = 384 cm 2
Pp = P kwadratu = a*a = 6*6 = 36 cm 2
384 = 36 + Pb
Pb = 384 - 36
Pb = 348 cm 2
a = 6 cm
b= 348 /6 = 58 cm
Wysokość wynosi 58 cm.