kat-a-jest-najmniejszym-z-katow-trojkata-prostokatnego-o-bokach

A)

$\displaystyle \cos\alpha= \frac{\sqrt{3}}{2}$ \displaystyle \cos\alpha= \frac{\sqrt{3}}{2}

B)

$\displaystyle \cos\alpha= \frac{1}{2}$ \displaystyle \cos\alpha= \frac{1}{2}

C)

$\displaystyle \cos\alpha= \frac{2\sqrt{3}}{3}$ \displaystyle \cos\alpha= \frac{2\sqrt{3}}{3}

D)

$\displaystyle \cos\alpha= \frac{\sqrt{3}}{3}$ \displaystyle \cos\alpha= \frac{\sqrt{3}}{3}