V=40cm³
kraw,podstawy=a
kraw,boczna h=5a
V=Pp·h
40=a²·5a
40=5a³ /:5
a³=8
a=∛8 =2 cm ----->dl,krawedzi podstawy bryly
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V=40cm³
kraw,podstawy=a
kraw,boczna h=5a
V=Pp·h
40=a²·5a
40=5a³ /:5
a³=8
a=∛8 =2 cm ----->dl,krawedzi podstawy bryly