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P=16√3
tg60°=r/h√3=r/hr=√3h
podstawa przekroju =2r=2√3h=aP=½ah16√3=½·2√3h ·h16√3=√3h²/;√3h²=16h=√16=4h= wysokosc stozkato promien stozka r=4√3
V=⅓Pp·h=⅓·(4√3)²·4=⅓·48·4=64 j²promien kuli =R rowny promieniowi stozka =r czyli
R=r=4√3pole kuli:P=4πr²=4π·(4√3)²=4π·48=192π j²