Answer: Choice A) 116 degrees
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Step-by-step explanation:
The largest angle JKL is 155 degrees (shown in blue).
Angle MKL is in red at 39 degrees
Since the smaller angles JKM and MKL combine to form the largest angle JKL, this means,
angleJKM + angleMKL = angleJKL
angleJKM = angleJKL - angleMKL
angleJKM = 155 - 39
angleJKM = 116