pole-rombu-o-obwodzie-20-i-kacie-rozwartym-120circ-jest

$\displaystyle \frac{25\sqrt{3}}{2}$\displaystyle \frac{25\sqrt{3}}{2}

$\displaystyle \frac{5\sqrt{3}}2{}$\displaystyle \frac{5\sqrt{3}}2{}

$\displaystyle \frac{25}{2}$\displaystyle \frac{25}{2}

$\displaystyle \frac{25\sqrt{3}}{4}$\displaystyle \frac{25\sqrt{3}}{4}