Answers

2016-02-03T23:59:55+05:30
2016-02-05T15:26:58+05:30
Covert radian into pi formula is given no. x 180 / pi

1) 2 pi/15  = 2 pi / 15 x 180 / pi
                 = 360 / 15 = 24
2) 4 pi/15 = 4 pi/15 x 180 / pi
                = 720 / 15 = 48
similarlly,
3) (8 x 180) /15  = 96
4) (14 x 180) / 15 = 168
0