Oblicz pole trojkata rownobocznego o boku a=6cm
P=a²√3:4
a=6cm
P=6²√3:4=36√3:4=9√3cm²
P=9√3cm²
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P=a²√3:4
a=6cm
P=6²√3:4=36√3:4=9√3cm²
P=9√3cm²