We have to solve the right triangle.
We know two of the sides: a = 13.2 and b = 17.7.
This are the two legs, and we have to find c, the hypotenuse and A and B, the two non-right angles.
We can calculate c as:

We can now find the angles using trigonometric ratios.
We can find A as:

We can find B as:

Answer:
A = 36.7°, B = 53.3°, c = 22.1 [Option C]