Derajat jadikan radian. 1. 3/8 putaran 2. 9/8 putaran 3. 3/4 putaran 4. 7/6 putaran

1° = 0,017 radian
1. 3/8 putaran
= 3/8 × 360°
= 3 × 45°
= 135°
= 135° × 0,017
= 2,295 radian atau 2,30 radian

2. 9/8 putaran
= 9/8 × 360°
= 9 × 45°
= 405°
= 405° × 0,017
= 6,885 radian atau 6,89 radian

3. 3/4 putaran
= 3/4 × 360°
= 3 × 90°
= 270°
= 270° × 0,017
= 4,59 radian

4. 7/6 putaran
= 7/6 × 360°
= 7 × 60°
= 420°
= 420° × 0,017
= 7,14 radian