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18 = a√3
a = 6√3
P = a²√3/4
P = 108√3/4
P = 27√3
odp. Pole wynosi 27√3 j²
r=2/3h
6=2/3h
h=9
h=a√3/2
9=a√3/2
18=a√3
a=6√3
P=a²√3/4
P=(6√3)²*√3/4=108√3/4=27√3
h=6*3/2
h=9
h=a√3/2
a=2h/√3
a=2*9/√3
a=18/√3
a=18√3/√9
a=18√3/3
a=6√3
P=1/2*a*h
P=1/2*6√3*9
P=27√3