Answer:Step-by-step explanation:From the information given , C = 90 , B = 40 and a = 40, A = 50Solving using Sine rule ; a/ Sin A = b / Sin B = c/ Sin C which implies 40/ Sin 50 = c/ Sin 90 , recall sin 90 = 1then, 40/ Sin 50 = c/ 1Cross multiplyc x Sin 50 = 40 c = 40/ Sin 50 c ≈ 52. 2163Using the same procedure to find bb/ Sin 40 = c/ Sin Cb/ Sin 40 = 52.2163/ 1therefore b = 52.2163 x Sin 40 b≈ 33. 5640