Question

convert into degree measure: 1) 2 pi/15 2)4 pi/15 3)8 pi /15 4)14 pi /15

Answer 1

1) 24°
2)48°
3)96°
4)168°

Answer 2

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