# 1Multiple choiceBesar sudut 180°180\degree180°dalam radian adalah..π2\frac{\pi}{2}2ππ\piπ2π2\pi2π3π2\frac{3\pi}{2}23π
# 2Multiple choiceSudut 5π6\frac{5\pi}{6}65πsama dengan...120°120\degree120°210°210\degree210°135°135\degree135°150°150\degree150°
# 3Multiple choiceJika 1 rad = 57,3°57,3\degree57,3°, maka 2π2\pi2π rad sama dengan kira-kira...180°180\degree180°360°360\degree360°90°90\degree90°270°270\degree270°
# 4Multiple choiceSudut 225°225\degree225°dalam radian adalah...5π6\frac{5\pi}{6}65π3π4\frac{3\pi}{4}43π5π4\frac{5\pi}{4}45π7π6\frac{7\pi}{6}67π