Answer:
18°
Explanation:
m<HLG+ m<HLI =90° being right angle
(9m)°+(25m+22)°=90°
9m°+ 25m°+22°=90°
34m°=90°-22°
34m°=68°
m°=68°/34°=2
since m<HLG =9m°=9*2°=18°
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