Question

Use the Law of Sines to solve for a to the nearest tenth.

Answer 1

Find the angle A

Answer 2

55?

Answer 3

A.

38.1

B.

39.1

C.

40.1

D.

37.1

Answer 4

hmm, then not 55

Answer 5

What's the angle of BAC?

Answer 6

im not sure how to find it

Answer 7

The total internal angle of a triangle is 180, so
180-55-78=47
Then use sine formula
\[\frac{\sin(47)}{a}=\frac{\sin(78)}{51}\]
solve for a