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b=6
h=2
H=5
V= 1/2*(a+b)*h*H
V= 1/2*(8+6)*2*5=1/2*14*2*5=70cm³
Pp=[(a+b)*h]:2
a=6cm
b=8cm
h=2cm
H=5cm
Pp=[(6+8)*2]:2=(14*2):2=14(cm²)
V=14*5=70(cm³)
odp. Objetośc tego graniastosłupa wynosi 70cm³.