Urč základnú veľkosť uhla:
−17 540°
\( \normalsize-260\degree=360-260=100\degree \)
\( \normalsize-260\degree=360-260=80\degree \)
\( \normalsize-260\degree=360-260=90\degree \)
\( \normalsize-260\degree=360-260=110\degree \)