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a ) P=
b) P=
Zadanie 2
a)
h=a√3/2
4=a√3/2/*2
8=a√3/:√3
8√3/3=a
b)
P=a²√3/4
√3=a²√3/4/*4
4√3=a²√3/:√3
4= a²
a=2