Pc = a²√3
a²√3 = 72√3 |:√3
a² = 72
a = √72
a = √(36*2)
a = 6√2
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Pc = a²√3
a²√3 = 72√3 |:√3
a² = 72
a = √72
a = √(36*2)
a = 6√2
72√3=a²√3
72=a²
a=√72
a=6√2
Pole całkowite = 4 pola trójkata równobocznego = 4×a²√₃ /4 = a²√₃
(czwórki skracamy)
pole całkowite = a²√₃
72√₃ = a²√₃ (√₃ skracamy)
a² = 72
a = √₇₂
a = 6√₂