Hi

Supplement of 111°23' = 180° - 111°23' 

Note: 1° = 60'    |180° = 179°60'

  179°60'

- 111°23'

   68°37'

 

  

Answer by anshu_a(16)   (Show Source): You can put this solution on YOUR website!
 supplement of an angle = 180-angle



so supplement of 111.23 = 180-111.23 = 68.77 

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