playfair
playfair playfair
  • 01-11-2020
  • Mathematics
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help ....................

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Respuesta :

padampb658247 padampb658247
  • 01-11-2020

Answer:

77+90+x=180 [<90° and sum of triangle angle is equa to 280]

167+X= 180

x=180-167

x=13°

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