Respuesta :

Wallameg000

Answer:

39°

Step-by-step explanation:

To answer this question it's important to remember that all triangles have 3 angles which sum to 180. This means that we can set up an equation to find the missing angle

Create the equation

  • [tex]39+102+x=180[/tex]

Combine like terms

  • [tex]141+x=180[/tex]

Subtract 141 from both sides

  • [tex]x=39[/tex]

This means that the missing angle is 39 degrees. Since two of the angles are equal to 39, this also means that this triangle is isosceles.

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