Jawabanmu

2014-04-28T17:52:26+07:00
5phi/7 x 180derajat/phi = 5 x 25,7 = 128,5derajat 3phi/5 x 180derajat/phi = 3 x 36 = 108derajat
2014-04-28T17:55:38+07:00
5π/7 x 180⁰/π = 128,6⁰
3π/5 x 180⁰/π = 108⁰