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PP=3*3
PP=9
h²+3²=5²
h²=16
h=4
v=1/3*9*4
v=12
h(kwadrat)=25-9
h(kwadrat)=16
h=pierwiastek z 16
h=4
Pp=3*3=9
V=1/3*Pp*h
V=1/3*9*4
V=3*4
V=12