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c- długośc ramienia podstawy
c²= a²+b²
a- wyskośc podstawy
b= 19-12=7 cm
c²= 576+49
c²=625
c= 25 cm
Pp= h*(a+b)÷2
Pp= (24*31)÷2
Pp= 372 cm²
Pb= 24*60+ 19*60+ 12*60+ 25*60= 4800 cm²
Pc= 2Pp+ Pb
Pc= 744+ 4800
Pc= 5544 cm²