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P=3,2*4:2=12,8:2=6,4 cm kwadratowe
h)P=b*h:2
P=1,5*2:2=1,5 cm kwadratowe
licze na naj :)
h) 1,5*2*1/2= 1,5*1=1,5cm2
1/2 to ułamek jedna druga