Respuesta :

munchkwn
answer: 156

explanation: just add the interior angles to get the exterior
khalidzsarker010

Answer:

156°

Step-by-step explanation:

the total internal angle of a triangle in 180°
so,

180 - (85 + 71)
= 24°

this is the internal angle, to find the external angle subtract this value from 180
so,

180 - 24
= 156° (answer)

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