haileygarcia8002 haileygarcia8002
  • 27-01-2022
  • Mathematics
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help on this question?

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Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 29-01-2022

Answer:

  • x = 9°
  • 8x = 72°
  • 12x = 108°

Step-by-step explanation:

Where a transversal crosses parallel lines, consecutive exterior angles are supplementary:

  8x +12x = 180°

  20x = 180° . . . . . . . collect terms

 x = 9° . . . . . . . . . divide by 20

  8x = 8(9°) = 72°

  12x = 12(9°) = 108°

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