Triangle JKL meets the criteria, which means it is the ambiguous case.
Substitute the known values into the law of sines: StartFraction sine (18 degrees) Over 7 EndFraction = StartFraction sine (uppercase K) Over 11 EndFraction.
Cross multiply: 11sin(18°) = .
Solve for the measure of angle K, and use a calculator to determine the value.
Round to the nearest degree: m∠K ≈ °.
However, because this is the ambiguous case, the measure of angle K could also be °.