Use the Law of Sines to find the missing angle of the triangle.
Find m∠B to the nearest tenth.
Leg: 13
Base: 19
Base angle: 40°
We can use the Law of Sines to find angle B:
sin(B)/13 = sin(40°)/19
sin(B) = (13*sin(40°))/19
B = sin^-1[(13*sin(40°))/19]
B ≈ 49.6°
Therefore, m∠B ≈ 49.6° to the nearest tenth.