Answer:
18
Explanation:
∠HLG = 18°
∠HLG + ∠HLI = 90°
9m + 25m + 22 = 90
34m + 22 = 90 ( subtract 22 from both sides )
34m = 68 ( divide both sides by 34 )
m = 2
∠HLG = 9m = 9 × 2 = 18°
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