Wzór:
[tex]P = a \cdot b[/tex]
Dane:
[tex]a = 3\sqrt{12} cm\\b = 2\sqrt{27} cm[/tex]
Liczymy pole:
[tex]P = a \cdot b\\\\P = 3 \sqrt{12} cm \cdot 2\sqrt{27} cm = \sqrt{9 \cdot 12} cm \cdot \sqrt{4 \cdot 27}cm = \sqrt{108}cm \cdot \sqrt{108} cm = (\sqrt{108} )^2 = 108cm^2[/tex]
Odp: Pole tego prostokąta wynosi [tex]108cm^2[/tex].