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Pp=a²=4²=16cm²
Pb=4Pp=4×16=64cm²
pole 1 ściany=64:4=16cm²
pole 1 sciany=½ah
16=½×4h
h=16:2=8cm
½a=2cm
H=\ wysokosc bryły
H=8²-2²=√64-4=√60=2√15cm
v=⅓PpH=⅓×16×2√15=³²/₃√15cm³(=10⅔√15)