Odpowiedź:
[tex]Pole = a*b = 6\sqrt{15}\\ a = 3\sqrt{3} \\3\sqrt{3}*b = 6\sqrt{15} \\ b = \frac{6\sqrt{15} }{3\sqrt{3} } = \frac{3*2*\sqrt{3}*\sqrt{5} }{3*\sqrt{3} } = 2\sqrt{5}\\ Obwod = 2a + 2b = 2*3\sqrt{3} + 2*2\sqrt{5} = 6\sqrt{3} + 4\sqrt{5}[/tex]
