Jawabanmu

2014-06-16T04:45:34+07:00
1. 2/5 * 360 = 144 derajat
2. 2/5 * 22π = 8,8π rad
2014-06-16T05:04:39+07:00
2/5 × 360°= 150°
150° ÷ 180° = 5/6 phi rad