Explicație pas cu pas:
Complementul:
90°-56°42'23''=89°59'60''-56°42'23''=33°17'37''
Suplementul:
Metoda 1:
180°-56°42'23''=179°59'60''-56°42'23''=123°17'37''
Metoda 2:
180°-56°42'23''=90°+90°-56°42'23''=90°+(90°-56°42'23'')=90°+33°17'37''=123°17'37''
