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a²√3
a=8 cm
czyli
8²√3= 64√3 cm²
_____________________ dzielone przez
4
Pc=Pp+Pb
Pp=a kwadrat √3 /4
Pp= 8 kwadrat √3 /4= 64pierwiastki z 3 /4=16√3
Pb= 3*16√3=48√3
pc = 16√3+48√3=64√3