Respuesta :

sqdancefan

9514 1404 393

Answer:

  x = 14°

Step-by-step explanation:

The two relations we use to solve this are ...

  • angles of a linear pair are supplementary
  • an exterior angle is equal to the sum of the remote interior angles.

The interior angle at C is ...

  180° -124° = 56°

The exterior angle at B is the sum of the interior angles at A and C:

  6x = 56° +2x

  4x = 56° . . . . . . . subtract 2x

  x = 14° . . . . . . . . divide by 4

Answer:

Step-by-step explanation:

Definition, total angles inside a triangle is 180 degrees.

So let set the equation as follow

2x  + (180- 124) + (180 -6x)  = 180

x=14

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