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Hey could anyone explain how to answer this kind of question? Or just solve and show what you did! Thank you!

Hey could anyone explain how to answer this kind of question Or just solve and show what you did Thank you class=

Respuesta :

Step-by-step explanation:

  • 9x-3=60°{each angle of equilateral triangle is 60°}
  • 9x=60+3
  • x=63/9
  • x=7

so,

  • 9x-3
  • 9×7-3
  • 63-3
  • 60°

hope it helps.

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