1 grad =60 de minute si 1 minut =60 de secunde
90°-50° = 40°; ( 2400' ) - minute sau ( 144.000" ) - secunde
90°+50° = 160°; ( 9600' ) - minute sau ( 576,000" ) - secunde
90°*50° = 4500°; ( 270.000' ) - minute sau ( 16,200,000" ) - secunde
90°÷50° = 1,8°; ( 108' ) - minute sau ( 6480" ) - secunde
bafta :D
