%0 Journal Article %A Indrek Zolk %T Angles and trigonometry %J The Teaching of Mathematics %D 2025 %P 86 %V XXVIII %N 2 %U http://geodesic.mathdoc.fr/articles/10.57016/TM-HLUM6570/ %R 10.57016/TM-HLUM6570 %G en %F 10_57016_TM_HLUM6570