Answer:
∠MKL = 81.13°
Step-by-step explanation:
240 mm has to be the equal legs because two 74 mm legs wouldn't work with a 240 mm base leg.
Drop a line from m to be perpendicular to LK.
This divides LK into two 37 mm segments.
cos ∠MKL = 37/240
cos ∠MKL = 0.1542
∠MKL = 81.13°
