Respostas

2013-11-30T20:13:48-02:00
A) +12°25'30''                     b) 35°12'/   4= 87°8'
      20°12'40''                                
-----------------
    31°37'70'
2013-12-01T06:29:41-02:00
A) 12°25' 30'' + 20° 12' 40'' = 32° 38' 10''
b) (35° 12') / 4 = 8° 48'