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a = 6
Pb = ?
H = ?
Pc = Pp +Pb
Pc = a² + Pb
96 = 36 + Pb
Pb = 60
Pb = 1/2*a*H*1/4
H = Pb/(1/2*a)*1/4 = 15/3 = 5
H = 5
Pp = a²
Pp = 6²
Pp = 36
Pb = Pc - Pp
Pb = 96 - 36 = 60
Pb = 60
b) Pb = 4 * 1/2 a* h
60 = 2* a * h
60 = 2 * 6 * h
60 = 12 * h / 12
h = 5
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