oblicz długość krawędzi sześcianu o powieżchni 8000cm2
P=6a^2
6a^2=8000cm^2
a^2=8000:6
a^2≈1333
a≈√1333
a≈√(100*13)
a≈10√13cm
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P=6a^2
6a^2=8000cm^2
a^2=8000:6
a^2≈1333
a≈√1333
a≈√(100*13)
a≈10√13cm