Răspuns :
complementul 90°-23°15'=89°60'-23°15'=66°45'
suplementul 180°-23°15'=179°60'-23°15'=156°45'
suplementul 180°-23°15'=179°60'-23°15'=156°45'
compl90°-23°15'=89°60'-23°15'=66°45'
supl180°-23°15'=179°60'-23°15'=156°45'
supl180°-23°15'=179°60'-23°15'=156°45'