1. complement= suma măsurilor unghiurilor este 90 grade
90-12=78 grade
90-24=66 grade
90-30=60 grade
90-45=45 grade
90-60=30 grade
90-66= 24 grade
90-78 =12 grade
2. Suplement= suma măsurilor unghiurilor este 180 grade
180-20=160 grade
180-160=20 grade
180-45= 135 grade
180-135= 45 grade
180-60= 120 grade
180- 120=60 grade
180- 30= 150 grade
180- 150= 30 grade
