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a+b=3,2dm=32cm
P=½h(a+b) /:(a+b)
P : (a+b)= ½h
½h=96:32=3 /*2
h=6[cm]
Odp.B ;)))
P= (a+b)/2 * h
2P/(a+b)= h
h= 2*96/32 = 192/32=6 cm ;]
odp B
pamietaj o przekształceniu wzoru ;]