Odpowiedź:
P = [tex]\frac{12*6}{2} = 36[/tex]
12 - 8 = 4
[tex]6^{2} + 4^{2} = x^{2}[/tex]
36 + 14 = [tex]x^{2}[/tex]
50 = [tex]x^{2}[/tex]
x = [tex]\sqrt{50}[/tex]
Obw: 12 *2 + 2 [tex]\sqrt{50}[/tex] = 24 + 2[tex]\sqrt{50}[/tex] = 24 + 10[tex]\sqrt{2}[/tex]
