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Pp=pierwiastek z 3 /4 * a do potęgo 2
Pp= pierwiastek z 3 /4 *100
Pp=25 pierwiastków z3
V=10 *25pierwiastek z 3 = 250pierwiastek z3 cm3
Pp=a²√3/4
Pp=10²√3/4
Pp=100√3/4
Pp=25√3 cm²≈43,25cm²
V=43,25*10=432,5 cm³