Question

Determine whether AABC should be solved by using the Law of Sines or the Law of Cosines. Then solve the triangle.

Answer 1

Answer:

B = 42.7 degrees, C = 102.3 degrees and c = 18.7.

Step-by-step explanation:

We use the Sine Rule:

a / sin A = b / sin B

11 / sin 35 = 13 / sin B

11 sin B =  13 sin 35

sin B = 13 sin 35 / 11 = 0.677863

B = 42.7 degrees.

So C =  180 - 42.7 - 35

= 102.3 degrees.

c / sin 102.3 = 11 / sin 35

c =  11 sin 102.3 / sin 35

= 18.7.