Hej!
[tex]P=\frac{a^2\sqrt3}{4}\\\\a] \ P=\frac{8^2\sqrt3}{4}=\frac{64\sqrt3}{4}=16\sqrt3 \ [ \ cm^2 \ ]\\\\b] \ P=\frac{10^2\sqrt3}{4}=\frac{100\sqrt3}{4}=25\sqrt3 \ [ \ cm^2 \ ]\\\\c] \ P=\frac{(2\sqrt3)^2\cdot\sqrt3}{4}=\frac{12\sqrt3}{4}=3\sqrt3 \ [ \ cm^2 \ ]\\\\d] \ P=\frac{(5\sqrt2)^2\cdot\sqrt3}{4}=\frac{50\sqrt3}{4}=\frac{25\sqrt3}{2} \ [ \ cm^2 \ ][/tex]
Pozdrawiam! - Julka
