Odpowiedzi

2010-03-01T09:39:19+01:00
A = 3cm
h = 6cm
Pc = 2*Pp + Pb
Pp = a² = 3cm² = 9cm²
Pb = 4 * a * h = 4 *3cm *6cm = 4*18cm² = 72cm²
Pc = 2*Pp + Pb
Pc = 2*9cm² + 72cm²
Pc = 18cm² + 72cm²
Pc = 90cm²
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