P = a²√3/4
P = (15*15*√3)/4
P = 225√3/4
P = 56,25√3 [cm²]
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P = a²√3/4
P = (15*15*√3)/4
P = 225√3/4
P = 56,25√3 [cm²]
P=15²√3/4
P=225√3/4
P=15²√3 /4
P=225√3 /4
P= 56,25 √3