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Pp=a²=6²=36
d=a√2=6√2=przekatna
1/2d=3√2
c=dł. krawedzi bocznej=10cm
H=wysokosc bryły
H²+(1/2d)²=c²
H/√[10²-(3√2)²]=√82
v=1/3*36*√82=12√82cm³