1. oblicz pole trójkąta równobocznego o boku 11cm.
a=11cm
P=a²√3/4
P=11²√3/4=121√3/4cm²
P=30,25√3cm²
Dane :
bok : a = 11 cm
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a=11cm
P=a²√3/4
P=11²√3/4=121√3/4cm²
P=30,25√3cm²
Dane :
bok : a = 11 cm