Algebra 2ChallengeCircles & Lines ShareCircles & Lines · Challenge problemWhat is sin2120∘\sin^2 120^\circsin2120∘?A54\dfrac{5}{4}45B111C32\dfrac{3}{2}23D34\dfrac{3}{4}43E98\dfrac{9}{8}89Check Show answer Walk through it step by step Practice more like this Review this concept