Find the length of BC. *

1.92 Step-by-step explanation:you have an angle that is 40° and BA= 3cmyou have an angle that is 40° and BA= 3cmyou want BCyou have an angle that is 40° and BA= 3cmyou want BCand BC is the opposite of angle 40you have an angle that is 40° and BA= 3cmyou want BCand BC is the opposite of angle 40and you have 3cm which is theyou have an angle that is 40° and BA= 3cmyou want BCand BC is the opposite of angle 40and you have 3cm which is thehypotenuse of angle 40 you have an angle that is 40° and BA= 3cmyou want BCand BC is the opposite of angle 40and you have 3cm which is thehypotenuse of angle 40 so, you have opposite and hypotenuse of angle 40 so, you are going to use sin