lexijanayy2 lexijanayy2
  • 22-03-2021
  • Mathematics
contestada

pls help with math question !
thank you !!

pls help with math question thank you class=

Respuesta :

theleangreenbean
theleangreenbean theleangreenbean
  • 22-03-2021

Answer:

42 degrees

Step-by-step explanation:

All the interior angles in a triangle add up to 180 degrees. Knowing this, we can construct the following equation:

[tex]180=84+54+a\\180=138+a[/tex]

Subtract both sides by 138

[tex]180-138=138+a-138\\42=a[/tex]

I hope this helps!

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