przyprostokatna-trojkata-prostokatnego-ma-dlugosc-6-a-przeciwprostokatna

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

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

$\displaystyle \frac{1}{2}$\displaystyle \frac{1}{2}

$2$2