Solve the triangle.

a = 33°, a = 20, b = 13

sin(A)/a=sin(B)/b=sin(C)/c
Substitute the known values into the law of sines to find B

sin(B)/13=sin(33)/20
B=20.73 ,159.26
The sum of all the angles in a triangle is 180180 degrees.33+20.733+C=180
C=126.266
sin(A)/a=sin(B)/b=sin(C)/c
Substitute the known values into the law of sines to find ABA⁢B.sin(126.26688907)/AB=sin(20.733)/13
AB=29.607
so final results are
A=33A=33B=20.733C=126.2668a=20b=13c=29.607
hope this helps