Step 1:

The sides of a triangle are and .

The angle of triangle .

The above information results the triangle is one triangle.

To solve the triangle, use Law of Sines.

Using law of sines formula  .

Step 2:

Consider .

Substitute , and in sine formula.

The angle .

For both the choices of , .

Therefore, only one choice is satisfies.

The triangle is a one triangle.

Step 3:

The sum of three angles in a triangle,

To find other side, by using law of sines formula . Consider .

Substitute , and in sine formula.

Solution:

The triangle side is 

The angles of triangle are