Question

calculate the side lengths a and b to two decimal places angle a is 64 angle b is 85 and line ab is 9.3? PLEASE HELP ASAP

Answer 1

∠C = 180° - (∠A + ∠B) = 180° - (64° + 85°) = 180° - 149° = 31°

`AC= (9.3*sin(85))/(sin(31)) = (9.3*0.9962)/(0.515) =17,99 \\ \\ BC=(9.3*sin(64))/(sin(31)) = (9.3*0.8988)/(0.515) =16,2`