Respuesta :

Answer:

  • 33°.

Step-by-step explanation:

We know that:

  • Angles A and B are 69° and 78°.
  • These angles and angle C add up to 180°.

We don't know:

  • Angle C.

So, lets solve 180 - 78 - 69:

  • 180 - 78 - 69
  • = (180 - 78) - 69
  • = 102 - 69
  • = 33.

Angle C is 33°.

mbj5ke67d8
All angles in a Circle add up to be 180

180-69-78=33