Mohon bantuannya dong nomer 8 bagian d sama e beserta caranya. Terimakasih

1 π rad = 180°
d) 7/8 π rad = 7/8 × 180 = 7 × 22,5° = 157,5°
e) 7/15 π raf = 7/15 × 180 = 7 × 12 = 84°