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Answer :

Sum of three angles=180°

[tex]\\ \rm\hookrightarrow x+x+10+2x-10=180[/tex]

[tex]\\ \rm\hookrightarrow 4x=180[/tex]

[tex]\\ \rm\hookrightarrow x=45[/tex]

  • x+10=55
  • 2x-10=80

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