[tex]a)15° = > \\ 15 \times 60 = 900'[/tex]
[tex]b)25° = > \\ 25 \times 60 = 150'[/tex]
[tex]c)30° = > \\ 30 \times 60 = 1800'[/tex]
[tex]d)90° = > \\ 90 \times 60 = 5400'[/tex]
[tex]e)60° = > \\ 60 \times 60 = 3600'[/tex]
[tex]f)100° = > \\ 100 \times 60 = 6000'[/tex]
