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            Matematika
            
               
               
            
            
               
               
             
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                Pertanyaan
            
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               1 Jawaban
            
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1. Jawaban luqmanhakima
3x + 3x + 90 =180°
6x = 180° - 90°
6x = 90°
x = 90/6 = 15° (c)
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