Need help solving the equation, trying to figure whether I multiply or divide.​

m∠B = 43°

b = 26.1

c = 38.3

Step-by-step explanation:

By applying triangle sum in the given triangle,

47° + 90° + m∠B = 180°

137° + m∠B = 180°

m∠B = 43°

By applying sine ratio to the angle measuring 47°.

sin(47°) =

            =

c =

c = 38.28

c ≈ 38.3

By applying cosine rule,

cos(47°) =

             =

             =

b = 38.3[cos(47°)]

b = 26.1

answer: 1 + 1 = 11

step-by-step explanation: